2022-08-29 00:49:51 +03:00
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# A \Time object represents a date and time:
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2021-06-06 06:08:54 +03:00
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#
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2022-08-29 00:49:51 +03:00
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# Time.new(2000, 1, 1, 0, 0, 0) # => 2000-01-01 00:00:00 -0600
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2021-06-06 06:08:54 +03:00
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#
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2022-08-29 00:49:51 +03:00
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# Although its value can be expressed as a single numeric
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# (see {Epoch Seconds}[rdoc-ref:Time@Epoch+Seconds] below),
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# it can be convenient to deal with the value by parts:
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2021-06-06 06:08:54 +03:00
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#
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2022-08-29 00:49:51 +03:00
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# t = Time.new(-2000, 1, 1, 0, 0, 0.0)
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# # => -2000-01-01 00:00:00 -0600
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# t.year # => -2000
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# t.month # => 1
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# t.mday # => 1
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# t.hour # => 0
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# t.min # => 0
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# t.sec # => 0
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# t.subsec # => 0
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#
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# t = Time.new(2000, 12, 31, 23, 59, 59.5)
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# # => 2000-12-31 23:59:59.5 -0600
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# t.year # => 2000
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# t.month # => 12
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# t.mday # => 31
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# t.hour # => 23
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# t.min # => 59
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# t.sec # => 59
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# t.subsec # => (1/2)
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#
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# == Epoch Seconds
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#
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2022-08-29 00:57:36 +03:00
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# <i>Epoch seconds</i> is the exact number of seconds
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# (including fractional subseconds) since the Unix Epoch, January 1, 1970.
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2022-08-29 00:49:51 +03:00
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#
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# You can retrieve that value exactly using method Time.to_r:
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#
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# Time.at(0).to_r # => (0/1)
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# Time.at(0.999999).to_r # => (9007190247541737/9007199254740992)
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#
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# Other retrieval methods such as Time#to_i and Time#to_f
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# may return a value that rounds or truncates subseconds.
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#
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# == \Time Resolution
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#
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# A \Time object derived from the system clock
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# (for example, by method Time.now)
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# has the resolution supported by the system.
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2021-06-06 06:08:54 +03:00
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#
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# == Examples
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#
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# All of these examples were done using the EST timezone which is GMT-5.
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#
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# === Creating a New \Time Instance
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#
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# You can create a new instance of Time with Time.new. This will use the
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# current system time. Time.now is an alias for this. You can also
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# pass parts of the time to Time.new such as year, month, minute, etc. When
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# you want to construct a time this way you must pass at least a year. If you
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# pass the year with nothing else time will default to January 1 of that year
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# at 00:00:00 with the current system timezone. Here are some examples:
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#
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# Time.new(2002) #=> 2002-01-01 00:00:00 -0500
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# Time.new(2002, 10) #=> 2002-10-01 00:00:00 -0500
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# Time.new(2002, 10, 31) #=> 2002-10-31 00:00:00 -0500
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#
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# You can pass a UTC offset:
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#
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# Time.new(2002, 10, 31, 2, 2, 2, "+02:00") #=> 2002-10-31 02:02:02 +0200
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#
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# Or a timezone object:
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#
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# zone = timezone("Europe/Athens") # Eastern European Time, UTC+2
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# Time.new(2002, 10, 31, 2, 2, 2, zone) #=> 2002-10-31 02:02:02 +0200
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#
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# You can also use Time.local and Time.utc to infer
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# local and UTC timezones instead of using the current system
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# setting.
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#
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# You can also create a new time using Time.at which takes the number of
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# seconds (with subsecond) since the {Unix
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# Epoch}[https://en.wikipedia.org/wiki/Unix_time].
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#
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# Time.at(628232400) #=> 1989-11-28 00:00:00 -0500
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#
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# === Working with an Instance of \Time
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#
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# Once you have an instance of Time there is a multitude of things you can
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# do with it. Below are some examples. For all of the following examples, we
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# will work on the assumption that you have done the following:
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#
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# t = Time.new(1993, 02, 24, 12, 0, 0, "+09:00")
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#
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# Was that a monday?
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#
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# t.monday? #=> false
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#
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# What year was that again?
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#
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# t.year #=> 1993
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#
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# Was it daylight savings at the time?
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#
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# t.dst? #=> false
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#
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# What's the day a year later?
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#
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# t + (60*60*24*365) #=> 1994-02-24 12:00:00 +0900
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#
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# How many seconds was that since the Unix Epoch?
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#
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# t.to_i #=> 730522800
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#
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# You can also do standard functions like compare two times.
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#
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# t1 = Time.new(2010)
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# t2 = Time.new(2011)
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#
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# t1 == t2 #=> false
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# t1 == t1 #=> true
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# t1 < t2 #=> true
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# t1 > t2 #=> false
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#
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# Time.new(2010,10,31).between?(t1, t2) #=> true
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#
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# == What's Here
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#
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2021-09-13 18:37:15 +03:00
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# First, what's elsewhere. \Class \Time:
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#
|
2022-02-19 09:14:01 +03:00
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# - Inherits from {class Object}[rdoc-ref:Object@What-27s+Here].
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# - Includes {module Comparable}[rdoc-ref:Comparable@What-27s+Here].
|
2021-09-13 18:37:15 +03:00
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#
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# Here, class \Time provides methods that are useful for:
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2021-06-06 06:08:54 +03:00
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#
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2022-02-19 09:14:01 +03:00
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# - {Creating \Time objects}[rdoc-ref:Time@Methods+for+Creating].
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# - {Fetching \Time values}[rdoc-ref:Time@Methods+for+Fetching].
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# - {Querying a \Time object}[rdoc-ref:Time@Methods+for+Querying].
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# - {Comparing \Time objects}[rdoc-ref:Time@Methods+for+Comparing].
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# - {Converting a \Time object}[rdoc-ref:Time@Methods+for+Converting].
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# - {Rounding a \Time}[rdoc-ref:Time@Methods+for+Rounding].
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2021-06-06 06:08:54 +03:00
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#
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# === Methods for Creating
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#
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# - ::new: Returns a new time from specified arguments (year, month, etc.),
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# including an optional timezone value.
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# - ::local (aliased as ::mktime): Same as ::new, except the
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# timezone is the local timezone.
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# - ::utc (aliased as ::gm): Same as ::new, except the timezone is UTC.
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# - ::at: Returns a new time based on seconds since epoch.
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# - ::now: Returns a new time based on the current system time.
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# - #+ (plus): Returns a new time increased by the given number of seconds.
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2022-02-11 04:30:28 +03:00
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# - #- (minus): Returns a new time decreased by the given number of seconds.
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2021-06-06 06:08:54 +03:00
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#
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# === Methods for Fetching
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#
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# - #year: Returns the year of the time.
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# - #month (aliased as #mon): Returns the month of the time.
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# - #mday (aliased as #day): Returns the day of the month.
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# - #hour: Returns the hours value for the time.
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# - #min: Returns the minutes value for the time.
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# - #sec: Returns the seconds value for the time.
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# - #usec (aliased as #tv_usec): Returns the number of microseconds
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# in the subseconds value of the time.
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# - #nsec (aliased as #tv_nsec: Returns the number of nanoseconds
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# in the subsecond part of the time.
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# - #subsec: Returns the subseconds value for the time.
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# - #wday: Returns the integer weekday value of the time (0 == Sunday).
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# - #yday: Returns the integer yearday value of the time (1 == January 1).
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# - #hash: Returns the integer hash value for the time.
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# - #utc_offset (aliased as #gmt_offset and #gmtoff): Returns the offset
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# in seconds between time and UTC.
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# - #to_f: Returns the float number of seconds since epoch for the time.
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# - #to_i (aliased as #tv_sec): Returns the integer number of seconds since epoch
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|
# for the time.
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# - #to_r: Returns the Rational number of seconds since epoch for the time.
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# - #zone: Returns a string representation of the timezone of the time.
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#
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|
# === Methods for Querying
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#
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# - #utc? (aliased as #gmt?): Returns whether the time is UTC.
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|
# - #dst? (aliased as #isdst): Returns whether the time is DST (daylight saving time).
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# - #sunday?: Returns whether the time is a Sunday.
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# - #monday?: Returns whether the time is a Monday.
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# - #tuesday?: Returns whether the time is a Tuesday.
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# - #wednesday?: Returns whether the time is a Wednesday.
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# - #thursday?: Returns whether the time is a Thursday.
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# - #friday?: Returns whether time is a Friday.
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# - #saturday?: Returns whether the time is a Saturday.
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|
#
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|
|
# === Methods for Comparing
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#
|
2022-02-11 04:30:28 +03:00
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# - #<=>: Compares +self+ to another time.
|
2021-06-06 06:08:54 +03:00
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# - #eql?: Returns whether the time is equal to another time.
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#
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|
# === Methods for Converting
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#
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# - #asctime (aliased as #ctime): Returns the time as a string.
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# - #inspect: Returns the time in detail as a string.
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# - #strftime: Returns the time as a string, according to a given format.
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# - #to_a: Returns a 10-element array of values from the time.
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# - #to_s: Returns a string representation of the time.
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# - #getutc (aliased as #getgm): Returns a new time converted to UTC.
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# - #getlocal: Returns a new time converted to local time.
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# - #utc (aliased as #gmtime): Converts time to UTC in place.
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# - #localtime: Converts time to local time in place.
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#
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# === Methods for Rounding
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#
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# - #round:Returns a new time with subseconds rounded.
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# - #ceil: Returns a new time with subseconds raised to a ceiling.
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# - #floor: Returns a new time with subseconds lowered to a floor.
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#
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# == Timezone Argument
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#
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# A timezone argument must have +local_to_utc+ and +utc_to_local+
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# methods, and may have +name+, +abbr+, and +dst?+ methods.
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#
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# The +local_to_utc+ method should convert a Time-like object from
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# the timezone to UTC, and +utc_to_local+ is the opposite. The
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# result also should be a Time or Time-like object (not necessary to
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# be the same class). The #zone of the result is just ignored.
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# Time-like argument to these methods is similar to a Time object in
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# UTC without subsecond; it has attribute readers for the parts,
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# e.g. #year, #month, and so on, and epoch time readers, #to_i. The
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# subsecond attributes are fixed as 0, and #utc_offset, #zone,
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# #isdst, and their aliases are same as a Time object in UTC.
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# Also #to_time, #+, and #- methods are defined.
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#
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# The +name+ method is used for marshaling. If this method is not
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# defined on a timezone object, Time objects using that timezone
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# object can not be dumped by Marshal.
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#
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# The +abbr+ method is used by '%Z' in #strftime.
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#
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# The +dst?+ method is called with a +Time+ value and should return whether
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# the +Time+ value is in daylight savings time in the zone.
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#
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# === Auto Conversion to Timezone
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#
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# At loading marshaled data, a timezone name will be converted to a timezone
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# object by +find_timezone+ class method, if the method is defined.
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#
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# Similarly, that class method will be called when a timezone argument does
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# not have the necessary methods mentioned above.
|
2021-05-08 05:40:20 +03:00
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class Time
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# Creates a new \Time object from the current system time.
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# This is the same as Time.new without arguments.
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#
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# Time.now # => 2009-06-24 12:39:54 +0900
|
2021-08-23 08:12:21 +03:00
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|
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# Time.now(in: '+04:00') # => 2009-06-24 07:39:54 +0400
|
2021-05-08 05:40:20 +03:00
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#
|
2022-08-21 19:36:36 +03:00
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|
|
# For forms of argument +zone+, see
|
2022-08-22 17:14:29 +03:00
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|
|
# {Timezone Specifiers}[rdoc-ref:timezone_specifiers.rdoc].
|
2021-05-08 05:40:20 +03:00
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|
|
def self.now(in: nil)
|
2022-01-11 20:10:23 +03:00
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Primitive.time_s_now(Primitive.arg!(:in))
|
2021-05-08 05:40:20 +03:00
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end
|
2020-12-29 19:55:51 +03:00
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2022-08-25 21:02:18 +03:00
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|
|
# Returns a new \Time object based on the given arguments.
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#
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# Required argument +time+ may be either of:
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#
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# - A \Time object, whose value is the basis for the returned time;
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# also influenced by optional keyword argument +in:+ (see below).
|
2022-08-29 00:49:51 +03:00
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# - A numeric number of
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# {Epoch seconds}[rdoc-ref:Time@Epoch+Seconds]
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# for the returned time.
|
2022-08-25 21:02:18 +03:00
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|
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#
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|
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# Examples:
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|
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|
#
|
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|
|
# t = Time.new(2000, 12, 31, 23, 59, 59) # => 2000-12-31 23:59:59 -0600
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# secs = t.to_i # => 978328799
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# Time.at(secs) # => 2000-12-31 23:59:59 -0600
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# Time.at(secs + 0.5) # => 2000-12-31 23:59:59.5 -0600
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# Time.at(1000000000) # => 2001-09-08 20:46:40 -0500
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# Time.at(0) # => 1969-12-31 18:00:00 -0600
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# Time.at(-1000000000) # => 1938-04-24 17:13:20 -0500
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#
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|
# Optional numeric argument +subsec+ and optional symbol argument +units+
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|
# work together to specify subseconds for the returned time;
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|
|
|
# argument +units+ specifies the units for +subsec+:
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#
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|
# - +:millisecond+: +subsec+ in milliseconds:
|
2021-05-08 05:40:20 +03:00
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#
|
2022-08-25 21:02:18 +03:00
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|
|
# Time.at(secs, 0, :millisecond) # => 2000-12-31 23:59:59 -0600
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# Time.at(secs, 500, :millisecond) # => 2000-12-31 23:59:59.5 -0600
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# Time.at(secs, 1000, :millisecond) # => 2001-01-01 00:00:00 -0600
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# Time.at(secs, -1000, :millisecond) # => 2000-12-31 23:59:58 -0600
|
2021-05-08 05:40:20 +03:00
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#
|
2022-08-25 21:02:18 +03:00
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|
|
# - +:microsecond+ or +:usec+: +subsec+ in microseconds:
|
2021-05-08 05:40:20 +03:00
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|
|
#
|
2022-08-25 21:02:18 +03:00
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|
|
# Time.at(secs, 0, :microsecond) # => 2000-12-31 23:59:59 -0600
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|
# Time.at(secs, 500000, :microsecond) # => 2000-12-31 23:59:59.5 -0600
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|
# Time.at(secs, 1000000, :microsecond) # => 2001-01-01 00:00:00 -0600
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|
# Time.at(secs, -1000000, :microsecond) # => 2000-12-31 23:59:58 -0600
|
2021-05-08 05:40:20 +03:00
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|
|
#
|
2022-08-29 00:49:51 +03:00
|
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|
# - +:nanosecond+ or +:nsec+: +subsec+ in nanoseconds:
|
2021-05-08 05:40:20 +03:00
|
|
|
#
|
2022-08-25 21:02:18 +03:00
|
|
|
# Time.at(secs, 0, :nanosecond) # => 2000-12-31 23:59:59 -0600
|
|
|
|
# Time.at(secs, 500000000, :nanosecond) # => 2000-12-31 23:59:59.5 -0600
|
|
|
|
# Time.at(secs, 1000000000, :nanosecond) # => 2001-01-01 00:00:00 -0600
|
|
|
|
# Time.at(secs, -1000000000, :nanosecond) # => 2000-12-31 23:59:58 -0600
|
2021-05-08 05:40:20 +03:00
|
|
|
#
|
|
|
|
#
|
2022-08-25 21:02:18 +03:00
|
|
|
# Optional keyword argument <tt>+in: zone</tt> specifies the timezone
|
|
|
|
# for the returned time:
|
2021-05-08 05:40:20 +03:00
|
|
|
#
|
2022-08-25 21:02:18 +03:00
|
|
|
# Time.at(secs, in: '+12:00') # => 2001-01-01 17:59:59 +1200
|
|
|
|
# Time.at(secs, in: '-12:00') # => 2000-12-31 17:59:59 -1200
|
2021-05-08 05:40:20 +03:00
|
|
|
#
|
2022-08-25 21:02:18 +03:00
|
|
|
# For the forms of argument +zone+, see
|
|
|
|
# {Timezone Specifiers}[rdoc-ref:timezone_specifiers.rdoc].
|
2021-05-08 05:40:20 +03:00
|
|
|
#
|
2021-11-10 12:14:14 +03:00
|
|
|
def self.at(time, subsec = false, unit = :microsecond, in: nil)
|
2021-11-13 01:44:46 +03:00
|
|
|
if Primitive.mandatory_only?
|
|
|
|
Primitive.time_s_at1(time)
|
|
|
|
else
|
|
|
|
Primitive.time_s_at(time, subsec, unit, Primitive.arg!(:in))
|
|
|
|
end
|
2021-05-08 05:40:20 +03:00
|
|
|
end
|
2020-12-28 15:13:41 +03:00
|
|
|
|
2022-08-25 21:02:18 +03:00
|
|
|
# Returns a new \Time object based on the given arguments,
|
|
|
|
# by default in the local timezone.
|
2020-12-28 15:13:41 +03:00
|
|
|
#
|
2021-04-25 23:51:31 +03:00
|
|
|
# With no positional arguments, returns the value of Time.now:
|
2020-12-28 15:13:41 +03:00
|
|
|
#
|
2022-08-25 21:02:18 +03:00
|
|
|
# Time.new # => 2021-04-24 17:27:46.0512465 -0500
|
|
|
|
#
|
|
|
|
# With one to six arguments, returns a new \Time object
|
|
|
|
# based on the given arguments, in the local timezone.
|
|
|
|
#
|
|
|
|
# Time.new(2000, 1, 2, 3, 4, 5) # => 2000-01-02 03:04:05 -0600
|
|
|
|
#
|
|
|
|
# For the positional arguments (other than +zone+):
|
|
|
|
#
|
|
|
|
# - +year+: Year, with no range limits:
|
|
|
|
#
|
|
|
|
# Time.new(999999999) # => 999999999-01-01 00:00:00 -0600
|
|
|
|
# Time.new(-999999999) # => -999999999-01-01 00:00:00 -0600
|
|
|
|
#
|
|
|
|
# - +month+: Month in range (1..12), or case-insensitive
|
|
|
|
# 3-letter month name:
|
|
|
|
#
|
|
|
|
# Time.new(2000, 1) # => 2000-01-01 00:00:00 -0600
|
|
|
|
# Time.new(2000, 12) # => 2000-12-01 00:00:00 -0600
|
|
|
|
# Time.new(2000, 'jan') # => 2000-01-01 00:00:00 -0600
|
|
|
|
# Time.new(2000, 'JAN') # => 2000-01-01 00:00:00 -0600
|
|
|
|
#
|
|
|
|
# - +mday+: Month day in range(1..31):
|
|
|
|
#
|
|
|
|
# Time.new(2000, 1, 1) # => 2000-01-01 00:00:00 -0600
|
|
|
|
# Time.new(2000, 1, 31) # => 2000-01-31 00:00:00 -0600
|
|
|
|
#
|
|
|
|
# - +hour+: Hour in range (0..23), or 24 if +min+, +sec+, and +usec+
|
|
|
|
# are zero:
|
|
|
|
#
|
|
|
|
# Time.new(2000, 1, 1, 0) # => 2000-01-01 00:00:00 -0600
|
|
|
|
# Time.new(2000, 1, 1, 23) # => 2000-01-01 23:00:00 -0600
|
|
|
|
# Time.new(2000, 1, 1, 24) # => 2000-01-02 00:00:00 -0600
|
|
|
|
#
|
|
|
|
# - +min+: Minute in range (0..59):
|
|
|
|
#
|
|
|
|
# Time.new(2000, 1, 1, 0, 0) # => 2000-01-01 00:00:00 -0600
|
|
|
|
# Time.new(2000, 1, 1, 0, 59) # => 2000-01-01 00:59:00 -0600
|
|
|
|
#
|
|
|
|
# - +sec+: Second in range (0..59), or 60 if +usec+ is zero:
|
|
|
|
#
|
|
|
|
# Time.new(2000, 1, 1, 0, 0, 0) # => 2000-01-01 00:00:00 -0600
|
|
|
|
# Time.new(2000, 1, 1, 0, 0, 59) # => 2000-01-01 00:00:59 -0600
|
|
|
|
# Time.new(2000, 1, 1, 0, 0, 60) # => 2000-01-01 00:01:00 -0600
|
|
|
|
#
|
|
|
|
# These values may be:
|
|
|
|
#
|
|
|
|
# - Integers, as above.
|
|
|
|
# - Numerics convertible to integers:
|
|
|
|
#
|
|
|
|
# Time.new(Float(0.0), Rational(1, 1), 1.0, 0.0, 0.0, 0.0)
|
|
|
|
# # => 0000-01-01 00:00:00 -0600
|
2020-12-28 15:13:41 +03:00
|
|
|
#
|
2022-08-25 21:02:18 +03:00
|
|
|
# - \String integers:
|
2020-12-28 15:13:41 +03:00
|
|
|
#
|
2022-08-25 21:02:18 +03:00
|
|
|
# a = %w[0 1 1 0 0 0]
|
|
|
|
# # => ["0", "1", "1", "0", "0", "0"]
|
|
|
|
# Time.new(*a) # => 0000-01-01 00:00:00 -0600
|
2020-12-28 15:13:41 +03:00
|
|
|
#
|
2022-08-25 21:02:18 +03:00
|
|
|
# When positional argument +zone+ or keyword argument +in:+ is given,
|
|
|
|
# the new \Time object is in the specified timezone.
|
|
|
|
# For the forms of argument +zone+, see
|
|
|
|
# {Timezone Specifiers}[rdoc-ref:timezone_specifiers.rdoc]:
|
2020-12-28 15:13:41 +03:00
|
|
|
#
|
2022-08-25 21:02:18 +03:00
|
|
|
# Time.new(2000, 1, 1, 0, 0, 0, '+12:00')
|
|
|
|
# # => 2000-01-01 00:00:00 +1200
|
|
|
|
# Time.new(2000, 1, 1, 0, 0, 0, in: '-12:00')
|
|
|
|
# # => 2000-01-01 00:00:00 -1200
|
|
|
|
# Time.new(in: '-12:00')
|
|
|
|
# # => 2022-08-23 08:49:26.1941467 -1200
|
2020-12-28 15:13:41 +03:00
|
|
|
#
|
2021-01-13 12:25:07 +03:00
|
|
|
def initialize(year = (now = true), mon = nil, mday = nil, hour = nil, min = nil, sec = nil, zone = nil, in: nil)
|
|
|
|
if zone
|
2021-11-10 21:50:38 +03:00
|
|
|
if Primitive.arg!(:in)
|
2021-01-13 12:25:07 +03:00
|
|
|
raise ArgumentError, "timezone argument given as positional and keyword arguments"
|
|
|
|
end
|
|
|
|
else
|
2021-11-10 21:50:38 +03:00
|
|
|
zone = Primitive.arg!(:in)
|
2021-01-13 12:25:07 +03:00
|
|
|
end
|
|
|
|
|
|
|
|
if now
|
2021-11-10 21:50:38 +03:00
|
|
|
return Primitive.time_init_now(zone)
|
2021-01-13 12:25:07 +03:00
|
|
|
end
|
|
|
|
|
2021-11-10 21:50:38 +03:00
|
|
|
Primitive.time_init_args(year, mon, mday, hour, min, sec, zone)
|
2020-12-28 15:13:41 +03:00
|
|
|
end
|
|
|
|
end
|