Class: DateTime

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain: self, `::DateAndTime::Compatibility`
Inherits:	Object
Defined in:	activesupport/lib/active_support/core_ext/object/json.rb, activesupport/lib/active_support/core_ext/date_time/acts_like.rb, activesupport/lib/active_support/core_ext/date_time/blank.rb, activesupport/lib/active_support/core_ext/date_time/calculations.rb, activesupport/lib/active_support/core_ext/date_time/compatibility.rb, activesupport/lib/active_support/core_ext/date_time/conversions.rb

Class Method Summary

.civil_from_format(utc_or_local, year, month = 1, day = 1, hour = 0, min = 0, sec = 0)

Returns DateTime with local offset for given year if format is local else offset is zero.
.current

Returns Time.zone.now.to_datetime when Time.zone or config.time_zone are set, otherwise returns Time.now.to_datetime.

Instance Attribute Summary

#acts_like_date? ⇒ Boolean readonly

Duck-types as a Date-like class.
#acts_like_time? ⇒ Boolean readonly

Duck-types as a Time-like class.
#utc (also: #getgm, #getutc, #gmtime) readonly

Returns a ::Time instance of the simultaneous time in the UTC timezone.
#utc? ⇒ Boolean readonly

Returns true if offset == 0.

`::DateAndTime::Compatibility` - Included

#preserve_timezone, #utc_to_local_returns_utc_offset_times

Instance Method Summary

#<=>(other)

Layers additional behavior on <=> so that ::Time and ::ActiveSupport::TimeWithZone instances can be compared with a DateTime.
#advance(options)

Uses Date to provide precise ::Time calculations for years, months, and days.
#ago(seconds)

Returns a new DateTime representing the time a number of seconds ago.
#at_beginning_of_day

Alias for #beginning_of_day.
#at_beginning_of_hour

Alias for #beginning_of_hour.
#at_beginning_of_minute

Alias for #beginning_of_minute.
#at_end_of_day

Alias for #end_of_day.
#at_end_of_hour

Alias for #end_of_hour.
#at_end_of_minute

Alias for #end_of_minute.
#at_midday

Alias for #middle_of_day.
#at_middle_of_day

Alias for #middle_of_day.
#at_midnight

Alias for #beginning_of_day.
#at_noon

Alias for #middle_of_day.
#beginning_of_day (also: #midnight, #at_midnight, #at_beginning_of_day)

Returns a new DateTime representing the start of the day (0:00).
#beginning_of_hour (also: #at_beginning_of_hour)

Returns a new DateTime representing the start of the hour (hh:00:00).
#beginning_of_minute (also: #at_beginning_of_minute)

Returns a new DateTime representing the start of the minute (hh:mm:00).
#change(options)

Returns a new DateTime where one or more of the elements have been changed according to the options parameter.
#default_inspect
#end_of_day (also: #at_end_of_day)

Returns a new DateTime representing the end of the day (23:59:59).
#end_of_hour (also: #at_end_of_hour)

Returns a new DateTime representing the end of the hour (hh:59:59).
#end_of_minute (also: #at_end_of_minute)

Returns a new DateTime representing the end of the minute (hh:mm:59).
#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.
#getgm

Alias for #utc.
#getlocal(utc_offset = nil)

Alias for #localtime.
#getutc

Alias for #utc.
#gmtime

Alias for #utc.
#in(seconds)

Alias for #since.
#inspect

Alias for #readable_inspect.
#localtime(utc_offset = nil) (also: #getlocal)

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

Alias for #middle_of_day.
#middle_of_day (also: #midday, #noon, #at_midday, #at_noon, #at_middle_of_day)

Returns a new DateTime representing the middle of the day (12:00).
#midnight

Alias for #beginning_of_day.
#noon

Alias for #middle_of_day.
#nsec

Returns the fraction of a second as nanoseconds.
#readable_inspect (also: #inspect)

Overrides the default inspect method with a human readable one, e.g., “Mon, 21 Feb 2005 14:30:00 +0000”.
#seconds_since_midnight

Returns the number of seconds since 00:00:00.
#seconds_until_end_of_day

Returns the number of seconds until 23:59:59.
#since(seconds) (also: #in)

Returns a new DateTime representing the time a number of seconds since the instance time.
#subsec

Returns the fraction of a second as a Rational
#to_default_s deprecated Deprecated.

use to_s instead
#to_f

Converts self to a floating-point number of seconds, including fractional microseconds, since the Unix epoch.
#to_formatted_s(format = :default)

Alias for #to_fs.
#to_fs(format = :default) (also: #to_formatted_s)

Convert to a formatted string.
#to_i

Converts self to an integer number of seconds since the Unix epoch.
#to_time

Either return an instance of ::Time with the same UTC offset as self or an instance of ::Time representing the same time in the local system timezone depending on the setting of on the setting of ActiveSupport.to_time_preserves_timezone.
#usec

Returns the fraction of a second as microseconds.
#utc_offset

Returns the offset value in seconds.

Class Method Details

.civil_from_format(utc_or_local, year, month = 1, day = 1, hour = 0, min = 0, sec = 0)

Returns DateTime with local offset for given year if format is local else offset is zero.

DateTime.civil_from_format :local, 2012
# => Sun, 01 Jan 2012 00:00:00 +0300
DateTime.civil_from_format :local, 2012, 12, 17
# => Mon, 17 Dec 2012 00:00:00 +0000

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 73


def self.civil_from_format(utc_or_local, year, month = 1, day = 1, hour = 0, min = 0, sec = 0)
  if utc_or_local.to_sym == :local
    offset = ::Time.local(year, month, day).utc_offset.to_r / 86400
  else
    offset = 0
  end
  civil(year, month, day, hour, min, sec, offset)
end

.current

Returns Time.zone.now.to_datetime when Time.zone or config.time_zone are set, otherwise returns Time.now.to_datetime.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 10


def current
  ::Time.zone ? ::Time.zone.now.to_datetime : ::Time.now.to_datetime
end

Instance Attribute Details

#acts_like_date? ⇒ `Boolean` (readonly)

Duck-types as a Date-like class. See Object#acts_like?.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/acts_like.rb', line 8


def acts_like_date?
  true
end

#acts_like_time? ⇒ `Boolean` (readonly)

Duck-types as a Time-like class. See Object#acts_like?.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/acts_like.rb', line 13


def acts_like_time?
  true
end

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

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

DateTime.civil(2005, 2, 21, 10, 11, 12, Rational(-6, 24))     # => Mon, 21 Feb 2005 10:11:12 -0600
DateTime.civil(2005, 2, 21, 10, 11, 12, Rational(-6, 24)).utc # => Mon, 21 Feb 2005 16:11:12 UTC

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 184


def utc
  utc = new_offset(0)

  Time.utc(
    utc.year, utc.month, utc.day,
    utc.hour, utc.min, utc.sec + utc.sec_fraction
  )
end

#utc? ⇒ `Boolean` (readonly)

Returns true if offset == 0.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 197


def utc?
  offset == 0
end

Instance Method Details

#<=>(other)

Layers additional behavior on <=> so that ::Time and ::ActiveSupport::TimeWithZone instances can be compared with a DateTime.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 208


def <=>(other)
  if other.respond_to? :to_datetime
    super other.to_datetime rescue nil
  else
    super
  end
end

#advance(options)

Uses Date to provide precise ::Time calculations for years, months, and days. The options parameter takes a hash with any of these keys: :years, :months, :weeks, :days, :hours, :minutes, :seconds.

Just like Date#advance, increments are applied in order of time units from largest to smallest. This order can affect the result around the end of a month.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 82


def advance(options)
  unless options[:weeks].nil?
    options[:weeks], partial_weeks = options[:weeks].divmod(1)
    options[:days] = options.fetch(:days, 0) + 7 * partial_weeks
  end

  unless options[:days].nil?
    options[:days], partial_days = options[:days].divmod(1)
    options[:hours] = options.fetch(:hours, 0) + 24 * partial_days
  end

  d = to_date.advance(options)
  datetime_advanced_by_date = change(year: d.year, month: d.month, day: d.day)
  seconds_to_advance = \
    options.fetch(:seconds, 0) +
    options.fetch(:minutes, 0) * 60 +
    options.fetch(:hours, 0) * 3600

  if seconds_to_advance.zero?
    datetime_advanced_by_date
  else
    datetime_advanced_by_date.since(seconds_to_advance)
  end
end

#ago(seconds)

Returns a new DateTime representing the time a number of seconds ago. Do not use this method in combination with x.months, use months_ago instead!

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 109


def ago(seconds)
  since(-seconds)
end

#at_beginning_of_day

Alias for #beginning_of_day.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 127


alias :at_beginning_of_day :beginning_of_day

#at_beginning_of_hour

Alias for #beginning_of_hour.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 149


alias :at_beginning_of_hour :beginning_of_hour

#at_beginning_of_minute

Alias for #beginning_of_minute.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 161


alias :at_beginning_of_minute :beginning_of_minute

#at_end_of_day

Alias for #end_of_day.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 143


alias :at_end_of_day :end_of_day

#at_end_of_hour

Alias for #end_of_hour.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 155


alias :at_end_of_hour :end_of_hour

#at_end_of_minute

Alias for #end_of_minute.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 167


alias :at_end_of_minute :end_of_minute

#at_midday

Alias for #middle_of_day.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 135


alias :at_midday :middle_of_day

#at_middle_of_day

Alias for #middle_of_day.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 137


alias :at_middle_of_day :middle_of_day

#at_midnight

Alias for #beginning_of_day.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 126


alias :at_midnight :beginning_of_day

#at_noon

Alias for #middle_of_day.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 136


alias :at_noon :middle_of_day

#beginning_of_day Also known as: #midnight, #at_midnight, #at_beginning_of_day

Returns a new DateTime representing the start of the day (0:00).

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 122


def beginning_of_day
  change(hour: 0)
end

#beginning_of_hour Also known as: #at_beginning_of_hour

Returns a new DateTime representing the start of the hour (hh:00:00).

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 146


def beginning_of_hour
  change(min: 0)
end

#beginning_of_minute Also known as: #at_beginning_of_minute

Returns a new DateTime representing the start of the minute (hh:mm:00).

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 158


def beginning_of_minute
  change(sec: 0)
end

#change(options)

Returns a new DateTime where one or more of the elements have been changed according to the options parameter. The time options (:hour, :min, :sec) reset cascadingly, so if only the hour is passed, then minute and sec is set to 0. If the hour and minute is passed, then sec is set to 0. The options parameter takes a hash with any of these keys: :year, :month, :day, :hour, :min, :sec, :offset, :start.

DateTime.new(2012, 8, 29, 22, 35, 0).change(day: 1)              # => DateTime.new(2012, 8, 1, 22, 35, 0)
DateTime.new(2012, 8, 29, 22, 35, 0).change(year: 1981, day: 1)  # => DateTime.new(1981, 8, 1, 22, 35, 0)
DateTime.new(2012, 8, 29, 22, 35, 0).change(year: 1981, hour: 0) # => DateTime.new(1981, 8, 29, 0, 0, 0)

Raises:

(ArgumentError)

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 51


def change(options)
  if new_nsec = options[:nsec]
    raise ArgumentError, "Can't change both :nsec and :usec at the same time: #{options.inspect}" if options[:usec]
    new_fraction = Rational(new_nsec, 1000000000)
  else
    new_usec = options.fetch(:usec, (options[:hour] || options[:min] || options[:sec]) ? 0 : Rational(nsec, 1000))
    new_fraction = Rational(new_usec, 1000000)
  end

  raise ArgumentError, "argument out of range" if new_fraction >= 1

  ::DateTime.civil(
    options.fetch(:year, year),
    options.fetch(:month, month),
    options.fetch(:day, day),
    options.fetch(:hour, hour),
    options.fetch(:min, options[:hour] ? 0 : min),
    options.fetch(:sec, (options[:hour] || options[:min]) ? 0 : sec) + new_fraction,
    options.fetch(:offset, offset),
    options.fetch(:start, start)
  )
end

#default_inspect

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 63


alias_method :default_inspect, :inspect

#end_of_day Also known as: #at_end_of_day

Returns a new DateTime representing the end of the day (23:59:59).

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 140


def end_of_day
  change(hour: 23, min: 59, sec: 59, usec: Rational(999999999, 1000))
end

#end_of_hour Also known as: #at_end_of_hour

Returns a new DateTime representing the end of the hour (hh:59:59).

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 152


def end_of_hour
  change(min: 59, sec: 59, usec: Rational(999999999, 1000))
end

#end_of_minute Also known as: #at_end_of_minute

Returns a new DateTime representing the end of the minute (hh:mm:59).

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 164


def end_of_minute
  change(sec: 59, usec: Rational(999999999, 1000))
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.

datetime = DateTime.civil(2000, 1, 1, 0, 0, 0, Rational(-6, 24))
datetime.formatted_offset         # => "-06:00"
datetime.formatted_offset(false)  # => "-0600"

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 55


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

#getgm

Alias for #utc.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 192


alias_method :getgm, :utc

#getlocal(utc_offset = nil)

Alias for #localtime.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 178


alias_method :getlocal, :localtime

#getutc

Alias for #utc.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 193


alias_method :getutc, :utc

#gmtime

Alias for #utc.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 194


alias_method :gmtime, :utc

#in(seconds)

Alias for #since.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 119


alias :in :since

#inspect

Alias for #readable_inspect.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 64


alias_method :inspect, :readable_inspect

#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/core_ext/date_time/calculations.rb', line 170


def localtime(utc_offset = nil)
  utc = new_offset(0)

  Time.utc(
    utc.year, utc.month, utc.day,
    utc.hour, utc.min, utc.sec + utc.sec_fraction
  ).getlocal(utc_offset)
end

#midday

Alias for #middle_of_day.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 133


alias :midday :middle_of_day

#middle_of_day Also known as: #midday, #noon, #at_midday, #at_noon, #at_middle_of_day

Returns a new DateTime representing the middle of the day (12:00)

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 130


def middle_of_day
  change(hour: 12)
end

#midnight

Alias for #beginning_of_day.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 125


alias :midnight :beginning_of_day

#noon

Alias for #middle_of_day.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 134


alias :noon :middle_of_day

#nsec

Returns the fraction of a second as nanoseconds

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 98


def nsec
  (sec_fraction * 1_000_000_000).to_i
end

#readable_inspect Also known as: #inspect

Overrides the default inspect method with a human readable one, e.g., “Mon, 21 Feb 2005 14:30:00 +0000”.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 60


def readable_inspect
  to_fs(:rfc822)
end

#seconds_since_midnight

Returns the number of seconds since 00:00:00.

DateTime.new(2012, 8, 29,  0,  0,  0).seconds_since_midnight # => 0
DateTime.new(2012, 8, 29, 12, 34, 56).seconds_since_midnight # => 45296
DateTime.new(2012, 8, 29, 23, 59, 59).seconds_since_midnight # => 86399

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 20


def seconds_since_midnight
  sec + (min * 60) + (hour * 3600)
end

#seconds_until_end_of_day

Returns the number of seconds until 23:59:59.

DateTime.new(2012, 8, 29,  0,  0,  0).seconds_until_end_of_day # => 86399
DateTime.new(2012, 8, 29, 12, 34, 56).seconds_until_end_of_day # => 41103
DateTime.new(2012, 8, 29, 23, 59, 59).seconds_until_end_of_day # => 0

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 29


def seconds_until_end_of_day
  end_of_day.to_i - to_i
end

#since(seconds) Also known as: #in

Returns a new DateTime representing the time a number of seconds since the instance time. Do not use this method in combination with x.months, use months_since instead!

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 116


def since(seconds)
  self + Rational(seconds, 86400)
end

#subsec

Returns the fraction of a second as a Rational

DateTime.new(2012, 8, 29, 0, 0, 0.5).subsec # => (1/2)

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 36


def subsec
  sec_fraction
end

#to_default_s

Deprecated.

use to_s instead

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 44


alias_method :to_default_s, :to_s

#to_f

Converts self to a floating-point number of seconds, including fractional microseconds, since the Unix epoch.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 83


def to_f
  seconds_since_unix_epoch.to_f + sec_fraction
end

#to_formatted_s(format = :default)

Alias for #to_fs.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 42


alias_method :to_formatted_s, :to_fs

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

Convert to a formatted string. See Time::DATE_FORMATS for predefined formats.

This method is aliased to #to_formatted_s.

Examples

datetime = DateTime.civil(2007, 12, 4, 0, 0, 0, 0)   # => Tue, 04 Dec 2007 00:00:00 +0000

datetime.to_fs(:db)            # => "2007-12-04 00:00:00"
datetime.to_formatted_s(:db)   # => "2007-12-04 00:00:00"
datetime.to_fs(:number)        # => "20071204000000"
datetime.to_fs(:short)         # => "04 Dec 00:00"
datetime.to_fs(:long)          # => "December 04, 2007 00:00"
datetime.to_fs(:long_ordinal)  # => "December 4th, 2007 00:00"
datetime.to_fs(:rfc822)        # => "Tue, 04 Dec 2007 00:00:00 +0000"
datetime.to_fs(:iso8601)       # => "2007-12-04T00:00:00+00:00"

Adding your own datetime formats to to_fs

DateTime formats are shared with ::Time. You can add your own to the Time::DATE_FORMATS hash. Use the format name as the hash key and either a strftime string or Proc instance that takes a time or datetime argument as the value.

# config/initializers/time_formats.rb
Time::DATE_FORMATS[:month_and_year] = '%B %Y'
Time::DATE_FORMATS[:short_ordinal] = lambda { |time| time.strftime("%B #{time.day.ordinalize}") }

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 35


def to_fs(format = :default)
  if formatter = ::Time::DATE_FORMATS[format]
    formatter.respond_to?(:call) ? formatter.call(self).to_s : strftime(formatter)
  else
    to_s
  end
end

#to_i

Converts self to an integer number of seconds since the Unix epoch.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 88


def to_i
  seconds_since_unix_epoch.to_i
end

#to_time

Either return an instance of ::Time with the same UTC offset as self or an instance of ::Time representing the same time in the local system timezone depending on the setting of on the setting of ActiveSupport.to_time_preserves_timezone.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/compatibility.rb', line 15


def to_time
  preserve_timezone ? getlocal(utc_offset) : getlocal
end

#usec

Returns the fraction of a second as microseconds

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/conversions.rb', line 93


def usec
  (sec_fraction * 1_000_000).to_i
end

#utc_offset

Returns the offset value in seconds.

[ GitHub ]

# File 'activesupport/lib/active_support/core_ext/date_time/calculations.rb', line 202


def utc_offset
  (offset * 86400).to_i
end

Class: DateTime

Class Method Summary

Instance Attribute Summary

::DateAndTime::Compatibility - Included

Instance Method Summary

Class Method Details

.civil_from_format(utc_or_local, year, month = 1, day = 1, hour = 0, min = 0, sec = 0)

.current

Instance Attribute Details

#acts_like_date? ⇒ Boolean (readonly)

#acts_like_time? ⇒ Boolean (readonly)

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

#utc? ⇒ Boolean (readonly)

Instance Method Details

#<=>(other)

#advance(options)

#ago(seconds)

#at_beginning_of_day

#at_beginning_of_hour

#at_beginning_of_minute

#at_end_of_day

#at_end_of_hour

#at_end_of_minute

#at_midday

#at_middle_of_day

#at_midnight

#at_noon

#beginning_of_day Also known as: #midnight, #at_midnight, #at_beginning_of_day

#beginning_of_hour Also known as: #at_beginning_of_hour

#beginning_of_minute Also known as: #at_beginning_of_minute

#change(options)

#default_inspect

#end_of_day Also known as: #at_end_of_day

#end_of_hour Also known as: #at_end_of_hour

#end_of_minute Also known as: #at_end_of_minute

#formatted_offset(colon = true, alternate_utc_string = nil)

#getgm

#getlocal(utc_offset = nil)

#getutc

#gmtime

#in(seconds)

#inspect

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

#midday

#middle_of_day Also known as: #midday, #noon, #at_midday, #at_noon, #at_middle_of_day

#midnight

#noon

#nsec

#readable_inspect Also known as: #inspect

#seconds_since_midnight

#seconds_until_end_of_day

#since(seconds) Also known as: #in

#subsec

#to_default_s

#to_f

#to_formatted_s(format = :default)

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

Examples

Adding your own datetime formats to to_fs

#to_i

#to_time

#usec

#utc_offset

`::DateAndTime::Compatibility` - Included

#acts_like_date? ⇒ `Boolean` (readonly)

#acts_like_time? ⇒ `Boolean` (readonly)

#utc? ⇒ `Boolean` (readonly)