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Class: ActiveSupport::TimeWithZone

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
self, Comparable
Inherits: Object
Defined in: activesupport/lib/active_support/time_with_zone.rb

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

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(utc_time, time_zone, local_time = nil, period = nil) ⇒ TimeWithZone

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 56

def initialize(utc_time, time_zone, local_time = nil, period = nil)
  @time_zone, @time = time_zone, local_time
  if utc_time
    @utc = transfer_time_values_to_utc_constructor(utc_time)
    @period = period
  else
    @utc = nil
    @period = get_period_and_ensure_valid_local_time(period)
  end
  @is_utc = zone == "UTC" || zone == "UCT"
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 598

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

#acts_like_time? ⇒ Boolean (readonly)

So that self acts_like?(:time).

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 557

def acts_like_time?
  true
end

#blank? ⇒ Boolean (readonly)

An instance of TimeWithZone is never blank

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 568

def blank?
  false
end

#dst? ⇒ Boolean (readonly) 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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 107

def dst?
  period.dst?
end

#future? ⇒ Boolean (readonly)

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 308

def future?
  utc.future?
end

#gmt? (readonly)

Alias for #utc?.

[ GitHub ]

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

alias_method :gmt?, :utc?

#isdst (readonly)

Alias for #dst?.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 110

alias_method :isdst, :dst?

#next_day? (readonly)

Alias for #tomorrow?.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 298

alias :next_day? :tomorrow?

#past? ⇒ Boolean (readonly)

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 283

def past?
  utc.past?
end

#present? ⇒ Boolean (readonly)

This method is for internal use only.
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 572

def present? # :nodoc:
  true
end

#prev_day? (readonly)

Alias for #yesterday?.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 305

alias :prev_day? :yesterday?

#time_zone (readonly)

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 54

attr_reader :time_zone

#today? ⇒ Boolean (readonly)

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

[ GitHub ]

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

def today?
  time.today?
end

#tomorrow? ⇒ Boolean (readonly) Also known as: #next_day?

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 295

def tomorrow?
  time.tomorrow?
end

#utc (readonly) Also known as: #comparable_time, #getgm, #getutc, #gmtime

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

[ GitHub ]

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

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

#utc? ⇒ Boolean (readonly) 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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 120

def utc?
  @is_utc
end

#yesterday? ⇒ Boolean (readonly) Also known as: #prev_day?

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 302

def yesterday?
  time.yesterday?
end

Instance Method Details

#+(other) 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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 341

def +(other)
  if duration_of_variable_length?(other)
    method_missing(:+, other)
  else
    result = utc + other

    result.in_time_zone(time_zone)
  end
end

#-(other)

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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 382

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

#<=>(other)

Use the time in UTC for comparisons.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 270

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

#advance(options)

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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 479

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

#after?

[ GitHub ]

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

alias_method :after?, :>

#ago(other)

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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 414

def ago(other)
  since(-other)
end

#as_json(options = nil)

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 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").as_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").as_json
#### => "2005/02/01 05:15:10 -1000"
[ GitHub ]

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

def as_json(options = nil)
  if ActiveSupport::JSON::Encoding.use_standard_json_time_format
    xmlschema(ActiveSupport::JSON::Encoding.time_precision).force_encoding(Encoding::UTF_8)
  else
    %(#{time.strftime("%Y/%m/%d %H:%M:%S")} #{formatted_offset(false)})
  end
end

#before?

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 273

alias_method :before?, :<

#between?(min, max) ⇒ Boolean

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 278

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

#change(options)

Returns a new 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 12:00:00.000000000 EST -05:00
t.change(min: 30)          # => Fri, 14 Apr 2017 11:30:00.000000000 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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 437

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

#comparable_time

Alias for #utc.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 77

alias_method :comparable_time, :utc

#duration_of_variable_length?(obj) ⇒ Boolean (private)

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 636

def duration_of_variable_length?(obj)
  ActiveSupport::Duration === obj && obj.variable?
end

#encode_with(coder)

This method is for internal use only.
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 209

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.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 313

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

#formatted_offset(colon = true, alternate_utc_string = nil)

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"
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 142

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

#freeze

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 576

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

#get_period_and_ensure_valid_local_time(period) (private)

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 617

def get_period_and_ensure_valid_local_time(period)
  # we don't want a Time.local instance enforcing its own DST rules as well,
  # so transfer time values to a utc constructor if necessary
  @time = transfer_time_values_to_utc_constructor(@time) unless @time.utc?
  begin
    period || @time_zone.period_for_local(@time)
  rescue ::TZInfo::PeriodNotFound
    # time is in the "spring forward" hour gap, so we're moving the time forward one hour and trying again
    @time += 1.hour
    retry
  end
end

#getgm

Alias for #utc.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 78

alias_method :getgm, :utc

#getlocal(utc_offset = nil)

Alias for #localtime.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 97

alias_method :getlocal, :localtime

#getutc

Alias for #utc.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 79

alias_method :getutc, :utc

#gmt_offset

Alias for #utc_offset.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 129

alias_method :gmt_offset, :utc_offset

#gmtime

Alias for #utc.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 80

alias_method :gmtime, :utc

#gmtoff

Alias for #utc_offset.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 130

alias_method :gmtoff, :utc_offset

#hash

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 317

def hash
  utc.hash
end

#httpdate

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"
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 219

def httpdate
  utc.httpdate
end

#in(other)

Alias for #+.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 351

alias_method :in, :+

#in_time_zone(new_zone = ::Time.zone)

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 88

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

#incorporate_utc_offset(time, offset) (private)

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 607

def incorporate_utc_offset(time, offset)
  if offset.zero?
    time
  elsif time.kind_of?(Date)
    time + Rational(offset, SECONDS_PER_DAY)
  else
    time + offset
  end
end

#init_with(coder)

This method is for internal use only.
[ GitHub ]

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

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

#inspect

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

{Time.zone}.now.inspect # => "2024-11-13 07:00:10.528054960 UTC +00:00"
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 161

def inspect
  "#{time.strftime('%F %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.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 562

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

#iso8601(fraction_digits = 0)

Alias for #xmlschema.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 180

alias_method :iso8601, :xmlschema

#kind_of?(klass)

Alias for #is_a?.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 565

alias_method :kind_of?, :is_a?

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

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

[ GitHub ]

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

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

#marshal_dump

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 582

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

#marshal_load(variables)

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 586

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

#period

Returns the underlying TZInfo::TimezonePeriod.

[ GitHub ]

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

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

#respond_to_missing?(sym, include_priv) ⇒ Boolean

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 592

def respond_to_missing?(sym, include_priv)
  time.respond_to?(sym, include_priv)
end

#rfc2822 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"
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 229

def rfc2822
  to_fs(:rfc822)
end

#rfc3339(fraction_digits = 0)

Alias for #xmlschema.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 181

alias_method :rfc3339, :xmlschema

#rfc822

Alias for #rfc2822.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 232

alias_method :rfc822, :rfc2822

#since(other)

Alias for #+.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 350

alias_method :since, :+

#strftime(format)

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 264

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

#time

Returns a ::Time instance that represents the time in #time_zone.

[ GitHub ]

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

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

#to_a

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"]
[ GitHub ]

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

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

#to_datetime

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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 545

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

#to_f

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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 514

def to_f
  utc.to_f
end

#to_formatted_s(format = :default)

Alias for #to_fs.

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 260

alias_method :to_formatted_s, :to_fs

#to_fs(format = :default) 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 TimeFormats can be used. See active_support/core_ext/time/conversions.rb.
[ GitHub ]

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

def to_fs(format = :default)
  if format == :db
    utc.to_fs(format)
  elsif formatter = ::ActiveSupport::TimeFormats.lookup(format)
    formatter.respond_to?(:call) ? formatter.call(self).to_s : strftime(formatter)
  else
    to_s
  end
end

#to_i 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
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 524

def to_i
  utc.to_i
end

#to_r

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)
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 535

def to_r
  utc.to_r
end

#to_s

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 235

def to_s
  if @is_utc
    transfer_time_values_to_utc_constructor(utc).to_s
  else
    transfer_time_values_to_utc_constructor(utc).getlocal(utc_offset).to_s
  end
end

#to_time

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 552

def to_time
  @to_time_with_timezone ||= getlocal(time_zone)
end

#transfer_time_values_to_utc_constructor(time) (private)

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 630

def transfer_time_values_to_utc_constructor(time)
  # avoid creating another Time object if possible
  return time if time.instance_of?(::Time) && time.utc?
  ::Time.utc(time.year, time.month, time.day, time.hour, time.min, time.sec + time.subsec)
end

#tv_sec

Alias for #to_i.

[ GitHub ]

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

alias_method :tv_sec, :to_i

#utc_offset Also known as: #gmt_offset, #gmtoff

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

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 126

def utc_offset
  period.observed_utc_offset
end

#wrap_with_time_zone(time) (private)

[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 640

def wrap_with_time_zone(time)
  if time.acts_like?(:time)
    periods = time_zone.periods_for_local(time)
    self.class.new(nil, time_zone, time, periods.include?(period) ? period : nil)
  elsif time.is_a?(Range)
    wrap_with_time_zone(time.begin)..wrap_with_time_zone(time.end)
  else
    time
  end
end

#xmlschema(fraction_digits = 0) 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"
[ GitHub ]

  
# File 'activesupport/lib/active_support/time_with_zone.rb', line 171

def xmlschema(fraction_digits = 0)
  precision = fraction_digits || 0

  if @is_utc
    utc.iso8601(precision)
  else
    transfer_time_values_to_utc_constructor(utc).getlocal(utc_offset).iso8601(precision)
  end
end

#zone

Returns the time zone abbreviation.

{Time.zone} = 'Eastern Time (US & Canada)'   # => "Eastern Time (US & Canada)"
{Time.zone}.now.zone # => "EST"
[ GitHub ]

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

def zone
  period.abbreviation
end