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Class: ActiveSupport::TimeWithZone

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
self, Comparable, ::DateAndTime::Compatibility
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

::DateAndTime::Compatibility - Included

#preserve_timezone, #utc_to_local_returns_utc_offset_times

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 51



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_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 540



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 494



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 505



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 94



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 270



def future?
  utc.future?
end


  








  

    #gmt?   (readonly)
  



  

    

Alias for #utc?.


  



  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 108



alias_method :gmt?, :utc?


  








  

    #isdst   (readonly)
  



  

    

Alias for #dst?.


  



  [ GitHub ]


  

  


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



alias_method :isdst, :dst?


  








  

    #next_day?   (readonly)
  



  

    

Alias for #tomorrow?.


  



  [ GitHub ]


  

  


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



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 245



def past?
  utc.past?
end


  








  

    #prev_day?   (readonly)
  



  

    

Alias for #yesterday?.


  



  [ GitHub ]


  

  


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



alias :prev_day? :yesterday?


  








  

    #time_zone   (readonly)
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 49



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 251



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 257



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 63



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 105



def utc?
  zone == "UTC" || zone == "UCT"
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 264



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 299



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)  
  



  

    

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 333



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)  
  



  

    

Use the time in UTC for comparisons.


  



  [ GitHub ]


  

  


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



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 422



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 236



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 361



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").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"


  



  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 166



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


  








  

    #before?  
  

  [ GitHub ]


  

  


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



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 240



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 12:00:00.116992711 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


  



  [ GitHub ]


  

  


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



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 66



alias_method :comparable_time, :utc


  








  

    #eql?(other)  ⇒ Boolean 
  



  

    

Returns true if other is equal to current object.


  





  


  [ GitHub ]


  

  


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



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 125



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 509



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


  








  

    #getgm  
  



  

    

Alias for #utc.


  



  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 67



alias_method :getgm, :utc


  








  

    #getlocal(utc_offset = nil)  
  



  

    

Alias for #localtime.


  



  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 86



alias_method :getlocal, :localtime


  








  

    #getutc  
  



  

    

Alias for #utc.


  



  [ GitHub ]


  

  


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



alias_method :getutc, :utc


  








  

    #gmt_offset  
  



  

    

Alias for #utc_offset.


  



  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 114



alias_method :gmt_offset, :utc_offset


  








  

    #gmtime  
  



  

    

Alias for #utc.


  



  [ GitHub ]


  

  


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



alias_method :gmtime, :utc


  








  

    #gmtoff  
  



  

    

Alias for #utc_offset.


  



  [ GitHub ]


  

  


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



alias_method :gmtoff, :utc_offset


  








  

    #hash  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 279



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 186



def httpdate
  utc.httpdate
end


  








  

    #in(other)  
  



  

    

Alias for #+.


  



  [ GitHub ]


  

  


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



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 77



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


  








  

    #inspect  
  



  

    

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"


  



  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 140



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.


  





  


  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 499



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 151



alias_method :iso8601, :xmlschema


  








  

    #kind_of?(klass)  
  



  

    

Alias for #is_a?.


  



  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 502



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 83



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


  








  

    #marshal_dump  
  

  [ GitHub ]


  

  


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



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


  








  

    #marshal_load(variables)  
  

  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 519



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 72



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


  





  


  [ GitHub ]


  

  


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



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.


  





  


  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 533



def respond_to_missing?(sym, include_priv)
  return false if sym.to_sym == :acts_like_date?
  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 194



def rfc2822
  to_fs(:rfc822)
end


  








  

    #rfc3339(fraction_digits = 0)  
  



  

    

Alias for #xmlschema.


  



  [ GitHub ]


  

  


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



alias_method :rfc3339, :xmlschema


  








  

    #rfc822  
  



  

    

Alias for #rfc2822.


  



  [ GitHub ]


  

  


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



alias_method :rfc822, :rfc2822


  








  

    #since(other)  
  



  

    

Alias for #+.


  



  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 307



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 226



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 58



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 445



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 478



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 453



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 222



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 Time::DATE_FORMATS can be used. See active_support/core_ext/time/conversions.rb.
    



  



  [ GitHub ]


  

  


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



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_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 461



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 470



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 200



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


  








  

    #to_time  
  



  

    

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.


  



  [ GitHub ]


  

  


# File 'activesupport/lib/active_support/time_with_zone.rb', line 485



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


  








  

    #tv_sec  
  



  

    

Alias for #to_i.


  



  [ GitHub ]


  

  


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



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 111



def utc_offset
  period.observed_utc_offset
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 148



def xmlschema(fraction_digits = 0)
  "#{time.strftime(PRECISIONS[fraction_digits.to_i])}#{formatted_offset(true, 'Z')}"
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 133



def zone
  period.abbreviation
end