Class: ActiveSupport::TimeWithZone

Inherits:
Object
  • Object
show all
Includes:
Comparable, DateAndTime::Compatibility
Defined in:
lib/active_support/time_with_zone.rb,
lib/active_support/core_ext/time/deprecated_conversions.rb
more...

Overview

A Time-like class that can represent a time in any time zone. Necessary because standard Ruby Time instances are limited to UTC and the system’s ENV['TZ'] zone.

You shouldn’t ever need to create a TimeWithZone instance directly via new. Instead use methods local, parse, at, and now on TimeZone instances, and in_time_zone on Time and DateTime instances.

Time.zone = 'Eastern Time (US & Canada)'        # => 'Eastern Time (US & Canada)'
Time.zone.local(2007, 2, 10, 15, 30, 45)        # => Sat, 10 Feb 2007 15:30:45.000000000 EST -05:00
Time.zone.parse('2007-02-10 15:30:45')          # => Sat, 10 Feb 2007 15:30:45.000000000 EST -05:00
Time.zone.at(1171139445)                        # => Sat, 10 Feb 2007 15:30:45.000000000 EST -05:00
Time.zone.now                                   # => Sun, 18 May 2008 13:07:55.754107581 EDT -04:00
Time.utc(2007, 2, 10, 20, 30, 45).in_time_zone  # => Sat, 10 Feb 2007 15:30:45.000000000 EST -05:00

See Time and TimeZone for further documentation of these methods.

TimeWithZone instances implement the same API as Ruby Time instances, so that Time and TimeWithZone instances are interchangeable.

t = Time.zone.now                     # => Sun, 18 May 2008 13:27:25.031505668 EDT -04:00
t.hour                                # => 13
t.dst?                                # => true
t.utc_offset                          # => -14400
t.zone                                # => "EDT"
t.to_fs(:rfc822)                      # => "Sun, 18 May 2008 13:27:25 -0400"
t + 1.day                             # => Mon, 19 May 2008 13:27:25.031505668 EDT -04:00
t.beginning_of_year                   # => Tue, 01 Jan 2008 00:00:00.000000000 EST -05:00
t > Time.utc(1999)                    # => true
t.is_a?(Time)                         # => true
t.is_a?(ActiveSupport::TimeWithZone)  # => true

Constant Summary collapse

PRECISIONS =
Hash.new { |h, n| h[n] = "%FT%T.%#{n}N" }
NOT_SET =

:nodoc:

Object.new

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(utc_time, time_zone, local_time = nil, period = nil) ⇒ TimeWithZone

Returns a new instance of TimeWithZone.

[View source]

61
62
63
64
65
# File 'lib/active_support/time_with_zone.rb', line 61

def initialize(utc_time, time_zone, local_time = nil, period = nil)
  @utc = utc_time ? transfer_time_values_to_utc_constructor(utc_time) : nil
  @time_zone, @time = time_zone, local_time
  @period = @utc ? period : get_period_and_ensure_valid_local_time(period)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missingObject

Send the missing method to time instance, and wrap result in a new TimeWithZone with the existing time_zone.

[View source]

550
551
552
553
554
# File 'lib/active_support/time_with_zone.rb', line 550

def method_missing(...)
  wrap_with_time_zone time.__send__(...)
rescue NoMethodError => e
  raise e, e.message.sub(time.inspect, inspect).sub("Time", "ActiveSupport::TimeWithZone"), e.backtrace
end

Instance Attribute Details

#time_zoneObject (readonly)

Returns the value of attribute time_zone.


59
60
61
# File 'lib/active_support/time_with_zone.rb', line 59

def time_zone
  @time_zone
end

Class Method Details

.nameObject

Report class name as ‘Time’ to thwart type checking.

[View source]

44
45
46
47
48
49
50
51
52
53
# File 'lib/active_support/time_with_zone.rb', line 44

def self.name
  ActiveSupport::Deprecation.warn(<<~EOM)
    ActiveSupport::TimeWithZone.name has been deprecated and
    from Rails 7.1 will use the default Ruby implementation.
    You can set `config.active_support.remove_deprecated_time_with_zone_name = true`
    to enable the new behavior now.
  EOM

  "Time"
end

Instance Method Details

#+(other) ⇒ Object Also known as: since, in

Adds an interval of time to the current object’s time and returns that value as a new TimeWithZone object.

Time.zone = 'Eastern Time (US & Canada)' # => 'Eastern Time (US & Canada)'
now = Time.zone.now # => Sun, 02 Nov 2014 01:26:28.725182881 EDT -04:00
now + 1000          # => Sun, 02 Nov 2014 01:43:08.725182881 EDT -04:00

If we’re adding a Duration of variable length (i.e., years, months, days), move forward from #time, otherwise move forward from #utc, for accuracy when moving across DST boundaries.

For instance, a time + 24.hours will advance exactly 24 hours, while a time + 1.day will advance 23-25 hours, depending on the day.

now + 24.hours      # => Mon, 03 Nov 2014 00:26:28.725182881 EST -05:00
now + 1.day         # => Mon, 03 Nov 2014 01:26:28.725182881 EST -05:00
[View source]

309
310
311
312
313
314
315
316
# File 'lib/active_support/time_with_zone.rb', line 309

def +(other)
  if duration_of_variable_length?(other)
    method_missing(:+, other)
  else
    result = utc.acts_like?(:date) ? utc.since(other) : utc + other rescue utc.since(other)
    result.in_time_zone(time_zone)
  end
end

#-(other) ⇒ Object

Subtracts an interval of time and returns a new TimeWithZone object unless the other value acts_like? time. In which case, it will subtract the other time and return the difference in seconds as a Float.

Time.zone = 'Eastern Time (US & Canada)' # => 'Eastern Time (US & Canada)'
now = Time.zone.now # => Mon, 03 Nov 2014 00:26:28.725182881 EST -05:00
now - 1000          # => Mon, 03 Nov 2014 00:09:48.725182881 EST -05:00

If subtracting a Duration of variable length (i.e., years, months, days), move backward from #time, otherwise move backward from #utc, for accuracy when moving across DST boundaries.

For instance, a time - 24.hours will go subtract exactly 24 hours, while a time - 1.day will subtract 23-25 hours, depending on the day.

now - 24.hours      # => Sun, 02 Nov 2014 01:26:28.725182881 EDT -04:00
now - 1.day         # => Sun, 02 Nov 2014 00:26:28.725182881 EDT -04:00

If both the TimeWithZone object and the other value act like Time, a Float will be returned.

Time.zone.now - 1.day.ago # => 86399.999967
[View source]

343
344
345
346
347
348
349
350
351
352
# File 'lib/active_support/time_with_zone.rb', line 343

def -(other)
  if other.acts_like?(:time)
    to_time - other.to_time
  elsif duration_of_variable_length?(other)
    method_missing(:-, other)
  else
    result = utc.acts_like?(:date) ? utc.ago(other) : utc - other rescue utc.ago(other)
    result.in_time_zone(time_zone)
  end
end

#<=>(other) ⇒ Object

Use the time in UTC for comparisons.

[View source]

242
243
244
# File 'lib/active_support/time_with_zone.rb', line 242

def <=>(other)
  utc <=> other
end

#acts_like_time?Boolean

So that self acts_like?(:time).

Returns:

  • (Boolean)
[View source]

504
505
506
# File 'lib/active_support/time_with_zone.rb', line 504

def acts_like_time?
  true
end

#advance(options) ⇒ Object

Uses Date to provide precise Time calculations for years, months, and days according to the proleptic Gregorian calendar. The result is returned as a new TimeWithZone object.

The options parameter takes a hash with any of these keys: :years, :months, :weeks, :days, :hours, :minutes, :seconds.

If advancing by a value of variable length (i.e., years, weeks, months, days), move forward from #time, otherwise move forward from #utc, for accuracy when moving across DST boundaries.

Time.zone = 'Eastern Time (US & Canada)' # => 'Eastern Time (US & Canada)'
now = Time.zone.now # => Sun, 02 Nov 2014 01:26:28.558049687 EDT -04:00
now.advance(seconds: 1) # => Sun, 02 Nov 2014 01:26:29.558049687 EDT -04:00
now.advance(minutes: 1) # => Sun, 02 Nov 2014 01:27:28.558049687 EDT -04:00
now.advance(hours: 1)   # => Sun, 02 Nov 2014 01:26:28.558049687 EST -05:00
now.advance(days: 1)    # => Mon, 03 Nov 2014 01:26:28.558049687 EST -05:00
now.advance(weeks: 1)   # => Sun, 09 Nov 2014 01:26:28.558049687 EST -05:00
now.advance(months: 1)  # => Tue, 02 Dec 2014 01:26:28.558049687 EST -05:00
now.advance(years: 1)   # => Mon, 02 Nov 2015 01:26:28.558049687 EST -05:00
[View source]

432
433
434
435
436
437
438
439
440
# File 'lib/active_support/time_with_zone.rb', line 432

def advance(options)
  # If we're advancing a value of variable length (i.e., years, weeks, months, days), advance from #time,
  # otherwise advance from #utc, for accuracy when moving across DST boundaries
  if options.values_at(:years, :weeks, :months, :days).any?
    method_missing(:advance, options)
  else
    utc.advance(options).in_time_zone(time_zone)
  end
end

#ago(other) ⇒ Object

Subtracts an interval of time from the current object’s time and returns the result as a new TimeWithZone object.

Time.zone = 'Eastern Time (US & Canada)' # => 'Eastern Time (US & Canada)'
now = Time.zone.now # => Mon, 03 Nov 2014 00:26:28.725182881 EST -05:00
now.ago(1000)       # => Mon, 03 Nov 2014 00:09:48.725182881 EST -05:00

If we’re subtracting a Duration of variable length (i.e., years, months, days), move backward from #time, otherwise move backward from #utc, for accuracy when moving across DST boundaries.

For instance, time.ago(24.hours) will move back exactly 24 hours, while time.ago(1.day) will move back 23-25 hours, depending on the day.

now.ago(24.hours)   # => Sun, 02 Nov 2014 01:26:28.725182881 EDT -04:00
now.ago(1.day)      # => Sun, 02 Nov 2014 00:26:28.725182881 EDT -04:00
[View source]

371
372
373
# File 'lib/active_support/time_with_zone.rb', line 371

def ago(other)
  since(-other)
end

#as_json(options = nil) ⇒ Object

Coerces time to a string for JSON encoding. The default format is ISO 8601. You can get %Y/%m/%d %H:%M:%S +offset style by setting ActiveSupport::JSON::Encoding.use_standard_json_time_format to false.

# With ActiveSupport::JSON::Encoding.use_standard_json_time_format = true
Time.utc(2005,2,1,15,15,10).in_time_zone("Hawaii").to_json
# => "2005-02-01T05:15:10.000-10:00"

# With ActiveSupport::JSON::Encoding.use_standard_json_time_format = false
Time.utc(2005,2,1,15,15,10).in_time_zone("Hawaii").to_json
# => "2005/02/01 05:15:10 -1000"
[View source]

176
177
178
179
180
181
182
# File 'lib/active_support/time_with_zone.rb', line 176

def as_json(options = nil)
  if ActiveSupport::JSON::Encoding.use_standard_json_time_format
    xmlschema(ActiveSupport::JSON::Encoding.time_precision)
  else
    %(#{time.strftime("%Y/%m/%d %H:%M:%S")} #{formatted_offset(false)})
  end
end

#between?(min, max) ⇒ Boolean

Returns true if the current object’s time is within the specified min and max time.

Returns:

  • (Boolean)
[View source]

250
251
252
# File 'lib/active_support/time_with_zone.rb', line 250

def between?(min, max)
  utc.between?(min, max)
end

#blank?Boolean

An instance of ActiveSupport::TimeWithZone is never blank

Returns:

  • (Boolean)
[View source]

515
516
517
# File 'lib/active_support/time_with_zone.rb', line 515

def blank?
  false
end

#change(options) ⇒ Object

Returns a new ActiveSupport::TimeWithZone where one or more of the elements have been changed according to the options parameter. The time options (:hour, :min, :sec, :usec, :nsec) reset cascadingly, so if only the hour is passed, then minute, sec, usec, and nsec is set to 0. If the hour and minute is passed, then sec, usec, and nsec is set to 0. The options parameter takes a hash with any of these keys: :year, :month, :day, :hour, :min, :sec, :usec, :nsec, :offset, :zone. Pass either :usec or :nsec, not both. Similarly, pass either :zone or :offset, not both.

t = Time.zone.now          # => Fri, 14 Apr 2017 11:45:15.116992711 EST -05:00
t.change(year: 2020)       # => Tue, 14 Apr 2020 11:45:15.116992711 EST -05:00
t.change(hour: 12)         # => Fri, 14 Apr 2017 12:00:00.116992711 EST -05:00
t.change(min: 30)          # => Fri, 14 Apr 2017 11:30:00.116992711 EST -05:00
t.change(offset: "-10:00") # => Fri, 14 Apr 2017 11:45:15.116992711 HST -10:00
t.change(zone: "Hawaii")   # => Fri, 14 Apr 2017 11:45:15.116992711 HST -10:00
[View source]

392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
# File 'lib/active_support/time_with_zone.rb', line 392

def change(options)
  if options[:zone] && options[:offset]
    raise ArgumentError, "Can't change both :offset and :zone at the same time: #{options.inspect}"
  end

  new_time = time.change(options)

  if options[:zone]
    new_zone = ::Time.find_zone(options[:zone])
  elsif options[:offset]
    new_zone = ::Time.find_zone(new_time.utc_offset)
  end

  new_zone ||= time_zone
  periods = new_zone.periods_for_local(new_time)

  self.class.new(nil, new_zone, new_time, periods.include?(period) ? period : nil)
end

#dst?Boolean Also known as: isdst

Returns true if the current time is within Daylight Savings Time for the specified time zone.

Time.zone = 'Eastern Time (US & Canada)'    # => 'Eastern Time (US & Canada)'
Time.zone.parse("2012-5-30").dst?           # => true
Time.zone.parse("2012-11-30").dst?          # => false

Returns:

  • (Boolean)
[View source]

104
105
106
# File 'lib/active_support/time_with_zone.rb', line 104

def dst?
  period.dst?
end

#encode_with(coder) ⇒ Object

:nodoc:

[View source]

188
189
190
# File 'lib/active_support/time_with_zone.rb', line 188

def encode_with(coder) # :nodoc:
  coder.map = { "utc" => utc, "zone" => time_zone, "time" => time }
end

#eql?(other) ⇒ Boolean

Returns true if other is equal to current object.

Returns:

  • (Boolean)
[View source]

285
286
287
# File 'lib/active_support/time_with_zone.rb', line 285

def eql?(other)
  other.eql?(utc)
end

#formatted_offset(colon = true, alternate_utc_string = nil) ⇒ Object

Returns a formatted string of the offset from UTC, or an alternative string if the time zone is already UTC.

Time.zone = 'Eastern Time (US & Canada)'   # => "Eastern Time (US & Canada)"
Time.zone.now.formatted_offset(true)       # => "-05:00"
Time.zone.now.formatted_offset(false)      # => "-0500"
Time.zone = 'UTC'                          # => "UTC"
Time.zone.now.formatted_offset(true, "0")  # => "0"
[View source]

135
136
137
# File 'lib/active_support/time_with_zone.rb', line 135

def formatted_offset(colon = true, alternate_utc_string = nil)
  utc? && alternate_utc_string || TimeZone.seconds_to_utc_offset(utc_offset, colon)
end

#freezeObject

[View source]

519
520
521
522
523
# File 'lib/active_support/time_with_zone.rb', line 519

def freeze
  # preload instance variables before freezing
  period; utc; time; to_datetime; to_time
  super
end

#future?Boolean

Returns true if the current object’s time is in the future.

Returns:

  • (Boolean)
[View source]

280
281
282
# File 'lib/active_support/time_with_zone.rb', line 280

def future?
  utc.future?
end

#hashObject

[View source]

289
290
291
# File 'lib/active_support/time_with_zone.rb', line 289

def hash
  utc.hash
end

#httpdateObject

Returns a string of the object’s date and time in the format used by HTTP requests.

Time.zone.now.httpdate  # => "Tue, 01 Jan 2013 04:39:43 GMT"
[View source]

196
197
198
# File 'lib/active_support/time_with_zone.rb', line 196

def httpdate
  utc.httpdate
end

#in_time_zone(new_zone = ::Time.zone) ⇒ Object

Returns the simultaneous time in Time.zone, or the specified zone.

[View source]

87
88
89
90
# File 'lib/active_support/time_with_zone.rb', line 87

def in_time_zone(new_zone = ::Time.zone)
  return self if time_zone == new_zone
  utc.in_time_zone(new_zone)
end

#init_with(coder) ⇒ Object

:nodoc:

[View source]

184
185
186
# File 'lib/active_support/time_with_zone.rb', line 184

def init_with(coder) # :nodoc:
  initialize(coder["utc"], coder["zone"], coder["time"])
end

#inspectObject

Returns a string of the object’s date, time, zone, and offset from UTC.

Time.zone.now.inspect # => "Thu, 04 Dec 2014 11:00:25.624541392 EST -05:00"
[View source]

150
151
152
# File 'lib/active_support/time_with_zone.rb', line 150

def inspect
  "#{time.strftime('%a, %d %b %Y %H:%M:%S.%9N')} #{zone} #{formatted_offset}"
end

#is_a?(klass) ⇒ Boolean Also known as: kind_of?

Say we’re a Time to thwart type checking.

Returns:

  • (Boolean)
[View source]

509
510
511
# File 'lib/active_support/time_with_zone.rb', line 509

def is_a?(klass)
  klass == ::Time || super
end

#localtime(utc_offset = nil) ⇒ Object Also known as: getlocal

Returns a Time instance of the simultaneous time in the system timezone.

[View source]

93
94
95
# File 'lib/active_support/time_with_zone.rb', line 93

def localtime(utc_offset = nil)
  utc.getlocal(utc_offset)
end

#marshal_dumpObject

[View source]

525
526
527
# File 'lib/active_support/time_with_zone.rb', line 525

def marshal_dump
  [utc, time_zone.name, time]
end

#marshal_load(variables) ⇒ Object

[View source]

529
530
531
# File 'lib/active_support/time_with_zone.rb', line 529

def marshal_load(variables)
  initialize(variables[0].utc, ::Time.find_zone(variables[1]), variables[2].utc)
end

#past?Boolean

Returns true if the current object’s time is in the past.

Returns:

  • (Boolean)
[View source]

255
256
257
# File 'lib/active_support/time_with_zone.rb', line 255

def past?
  utc.past?
end

#periodObject

Returns the underlying TZInfo::TimezonePeriod.

[View source]

82
83
84
# File 'lib/active_support/time_with_zone.rb', line 82

def period
  @period ||= time_zone.period_for_utc(@utc)
end

#respond_to?(sym, include_priv = false) ⇒ Boolean

respond_to_missing? is not called in some cases, such as when type conversion is performed with Kernel#String

Returns:

  • (Boolean)
[View source]

535
536
537
538
539
# File 'lib/active_support/time_with_zone.rb', line 535

def respond_to?(sym, include_priv = false)
  # ensure that we're not going to throw and rescue from NoMethodError in method_missing which is slow
  return false if sym.to_sym == :to_str
  super
end

#respond_to_missing?(sym, include_priv) ⇒ Boolean

Ensure proxy class responds to all methods that underlying time instance responds to.

Returns:

  • (Boolean)
[View source]

543
544
545
546
# File 'lib/active_support/time_with_zone.rb', line 543

def respond_to_missing?(sym, include_priv)
  return false if sym.to_sym == :acts_like_date?
  time.respond_to?(sym, include_priv)
end

#rfc2822Object Also known as: rfc822

Returns a string of the object’s date and time in the RFC 2822 standard format.

Time.zone.now.rfc2822  # => "Tue, 01 Jan 2013 04:51:39 +0000"
[View source]

204
205
206
# File 'lib/active_support/time_with_zone.rb', line 204

def rfc2822
  to_fs(:rfc822)
end

#strftime(format) ⇒ Object

Replaces %Z directive with +zone before passing to Time#strftime, so that zone information is correct.

[View source]

236
237
238
239
# File 'lib/active_support/time_with_zone.rb', line 236

def strftime(format)
  format = format.gsub(/((?:\A|[^%])(?:%%)*)%Z/, "\\1#{zone}")
  getlocal(utc_offset).strftime(format)
end

#timeObject

Returns a Time instance that represents the time in time_zone.

[View source]

68
69
70
# File 'lib/active_support/time_with_zone.rb', line 68

def time
  @time ||= incorporate_utc_offset(@utc, utc_offset)
end

#to_aObject

Returns Array of parts of Time in sequence of [seconds, minutes, hours, day, month, year, weekday, yearday, dst?, zone].

now = Time.zone.now     # => Tue, 18 Aug 2015 02:29:27.485278555 UTC +00:00
now.to_a                # => [27, 29, 2, 18, 8, 2015, 2, 230, false, "UTC"]
[View source]

455
456
457
# File 'lib/active_support/time_with_zone.rb', line 455

def to_a
  [time.sec, time.min, time.hour, time.day, time.mon, time.year, time.wday, time.yday, dst?, zone]
end

#to_datetimeObject

Returns an instance of DateTime with the timezone’s UTC offset

Time.zone.now.to_datetime                         # => Tue, 18 Aug 2015 02:32:20 +0000
Time.current.in_time_zone('Hawaii').to_datetime   # => Mon, 17 Aug 2015 16:32:20 -1000
[View source]

488
489
490
# File 'lib/active_support/time_with_zone.rb', line 488

def to_datetime
  @to_datetime ||= utc.to_datetime.new_offset(Rational(utc_offset, 86_400))
end

#to_fObject

Returns the object’s date and time as a floating-point number of seconds since the Epoch (January 1, 1970 00:00 UTC).

Time.zone.now.to_f # => 1417709320.285418
[View source]

463
464
465
# File 'lib/active_support/time_with_zone.rb', line 463

def to_f
  utc.to_f
end

#to_fs(format = :default) ⇒ Object Also known as: to_formatted_s

Returns a string of the object’s date and time.

This method is aliased to to_formatted_s.

Accepts an optional format:

  • :default - default value, mimics Ruby Time#to_s format.

  • :db - format outputs time in UTC :db time. See Time#to_fs(:db).

  • Any key in Time::DATE_FORMATS can be used. See active_support/core_ext/time/conversions.rb.

[View source]

222
223
224
225
226
227
228
229
230
231
# File 'lib/active_support/time_with_zone.rb', line 222

def to_fs(format = :default)
  if format == :db
    utc.to_fs(format)
  elsif formatter = ::Time::DATE_FORMATS[format]
    formatter.respond_to?(:call) ? formatter.call(self).to_s : strftime(formatter)
  else
    # Change to to_s when deprecation is gone.
    "#{time.strftime("%Y-%m-%d %H:%M:%S")} #{formatted_offset(false, 'UTC')}"
  end
end

#to_iObject Also known as: tv_sec

Returns the object’s date and time as an integer number of seconds since the Epoch (January 1, 1970 00:00 UTC).

Time.zone.now.to_i # => 1417709320
[View source]

471
472
473
# File 'lib/active_support/time_with_zone.rb', line 471

def to_i
  utc.to_i
end

#to_rObject

Returns the object’s date and time as a rational number of seconds since the Epoch (January 1, 1970 00:00 UTC).

Time.zone.now.to_r # => (708854548642709/500000)
[View source]

480
481
482
# File 'lib/active_support/time_with_zone.rb', line 480

def to_r
  utc.to_r
end

#to_s(format = NOT_SET) ⇒ Object

:nodoc:

[View source]

210
211
212
# File 'lib/active_support/time_with_zone.rb', line 210

def to_s
  "#{time.strftime("%Y-%m-%d %H:%M:%S")} #{formatted_offset(false, 'UTC')}" # mimicking Ruby Time#to_s format
end

#to_timeObject

Returns an instance of Time, either with the same UTC offset as self or in the local system timezone depending on the setting of ActiveSupport.to_time_preserves_timezone.

[View source]

495
496
497
498
499
500
501
# File 'lib/active_support/time_with_zone.rb', line 495

def to_time
  if preserve_timezone
    @to_time_with_instance_offset ||= getlocal(utc_offset)
  else
    @to_time_with_system_offset ||= getlocal
  end
end

#today?Boolean

Returns true if the current object’s time falls within the current day.

Returns:

  • (Boolean)
[View source]

261
262
263
# File 'lib/active_support/time_with_zone.rb', line 261

def today?
  time.today?
end

#tomorrow?Boolean Also known as: next_day?

Returns true if the current object’s time falls within the next day (tomorrow).

Returns:

  • (Boolean)
[View source]

267
268
269
# File 'lib/active_support/time_with_zone.rb', line 267

def tomorrow?
  time.tomorrow?
end

#utcObject Also known as: comparable_time, getgm, getutc, gmtime

Returns a Time instance of the simultaneous time in the UTC timezone.

[View source]

73
74
75
# File 'lib/active_support/time_with_zone.rb', line 73

def utc
  @utc ||= incorporate_utc_offset(@time, -utc_offset)
end

#utc?Boolean Also known as: gmt?

Returns true if the current time zone is set to UTC.

Time.zone = 'UTC'                           # => 'UTC'
Time.zone.now.utc?                          # => true
Time.zone = 'Eastern Time (US & Canada)'    # => 'Eastern Time (US & Canada)'
Time.zone.now.utc?                          # => false

Returns:

  • (Boolean)
[View source]

115
116
117
# File 'lib/active_support/time_with_zone.rb', line 115

def utc?
  zone == "UTC" || zone == "UCT"
end

#utc_offsetObject Also known as: gmt_offset, gmtoff

Returns the offset from current time to UTC time in seconds.

[View source]

121
122
123
# File 'lib/active_support/time_with_zone.rb', line 121

def utc_offset
  period.observed_utc_offset
end

#xmlschema(fraction_digits = 0) ⇒ Object Also known as: iso8601, rfc3339

Returns a string of the object’s date and time in the ISO 8601 standard format.

Time.zone.now.xmlschema  # => "2014-12-04T11:02:37-05:00"
[View source]

158
159
160
# File 'lib/active_support/time_with_zone.rb', line 158

def xmlschema(fraction_digits = 0)
  "#{time.strftime(PRECISIONS[fraction_digits.to_i])}#{formatted_offset(true, 'Z')}"
end

#yesterday?Boolean Also known as: prev_day?

Returns true if the current object’s time falls within the previous day (yesterday).

Returns:

  • (Boolean)
[View source]

274
275
276
# File 'lib/active_support/time_with_zone.rb', line 274

def yesterday?
  time.yesterday?
end

#zoneObject

Returns the time zone abbreviation.

Time.zone = 'Eastern Time (US & Canada)'   # => "Eastern Time (US & Canada)"
Time.zone.now.zone # => "EST"
[View source]

143
144
145
# File 'lib/active_support/time_with_zone.rb', line 143

def zone
  period.abbreviation
end