Class: Time

Inherits:
Object show all
Defined in:
activesupport/lib/active_support/json/encoding.rb,
activesupport/lib/active_support/core_ext/time/zones.rb,
activesupport/lib/active_support/core_ext/time/marshal.rb,
activesupport/lib/active_support/core_ext/time/marshal.rb,
activesupport/lib/active_support/core_ext/time/acts_like.rb,
activesupport/lib/active_support/core_ext/time/conversions.rb,
activesupport/lib/active_support/core_ext/time/calculations.rb,
activesupport/lib/active_support/core_ext/time/publicize_conversion_methods.rb

Constant Summary

DATE_FORMATS =
{
  :db           => "%Y-%m-%d %H:%M:%S",
  :number       => "%Y%m%d%H%M%S",
  :time         => "%H:%M",
  :short        => "%d %b %H:%M",
  :long         => "%B %d, %Y %H:%M",
  :long_ordinal => lambda { |time| time.strftime("%B #{ActiveSupport::Inflector.ordinalize(time.day)}, %Y %H:%M") },
  :rfc822       => lambda { |time| time.strftime("%a, %d %b %Y %H:%M:%S #{time.formatted_offset(false)}") }
}
COMMON_YEAR_DAYS_IN_MONTH =
[nil, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
DAYS_INTO_WEEK =
{ :monday => 0, :tuesday => 1, :wednesday => 2, :thursday => 3, :friday => 4, :saturday => 5, :sunday => 6 }

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

.zone_defaultObject

Returns the value of attribute zone_default



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# File 'activesupport/lib/active_support/core_ext/time/zones.rb', line 5

def zone_default
  @zone_default
end

Class Method Details

.===(other) ⇒ Object

Overriding case equality method so that it returns true for ActiveSupport::TimeWithZone instances



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 11

def ===(other)
  super || (self == Time && other.is_a?(ActiveSupport::TimeWithZone))
end

._load(marshaled_time) ⇒ Object



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# File 'activesupport/lib/active_support/core_ext/time/marshal.rb', line 8

def _load(marshaled_time)
  time = _load_without_utc_flag(marshaled_time)
  time.instance_eval do
    if defined?(@marshal_with_utc_coercion)
      val = remove_instance_variable("@marshal_with_utc_coercion")
    end
    val ? utc : self
  end
end

._load_without_utc_flagObject



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# File 'activesupport/lib/active_support/core_ext/time/marshal.rb', line 7

alias_method :_load_without_utc_flag, :_load

._load_without_zoneObject



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# File 'activesupport/lib/active_support/core_ext/time/marshal.rb', line 34

def _load(marshaled_time)
  time = _load_without_utc_flag(marshaled_time)
  time.instance_eval do
    if defined?(@marshal_with_utc_coercion)
      val = remove_instance_variable("@marshal_with_utc_coercion")
    end
    val ? utc : self
  end
end

.currentObject

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



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 44

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

.days_in_month(month, year = now.year) ⇒ Object

Return the number of days in the given month. If no year is specified, it will use the current year.



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 17

def days_in_month(month, year = now.year)
  return 29 if month == 2 && ::Date.gregorian_leap?(year)
  COMMON_YEAR_DAYS_IN_MONTH[month]
end

.find_zone(time_zone) ⇒ Object



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# File 'activesupport/lib/active_support/core_ext/time/zones.rb', line 64

def find_zone(time_zone)
  find_zone!(time_zone) rescue nil
end

.find_zone!(time_zone) ⇒ Object

Returns a TimeZone instance or nil, or raises an ArgumentError for invalid timezones.



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# File 'activesupport/lib/active_support/core_ext/time/zones.rb', line 52

def find_zone!(time_zone)
  return time_zone if time_zone.nil? || time_zone.is_a?(ActiveSupport::TimeZone)
  # lookup timezone based on identifier (unless we've been passed a TZInfo::Timezone)
  unless time_zone.respond_to?(:period_for_local)
    time_zone = ActiveSupport::TimeZone[time_zone] || TZInfo::Timezone.get(time_zone)
  end
  # Return if a TimeZone instance, or wrap in a TimeZone instance if a TZInfo::Timezone
  time_zone.is_a?(ActiveSupport::TimeZone) ? time_zone : ActiveSupport::TimeZone.create(time_zone.name, nil, time_zone)
rescue TZInfo::InvalidTimezoneIdentifier
  raise ArgumentError, "Invalid Timezone: #{time_zone}"
end

.local_time(*args) ⇒ Object

Wraps class method time_with_datetime_fallback with utc_or_local set to :local.



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 39

def local_time(*args)
  time_with_datetime_fallback(:local, *args)
end

.time_with_datetime_fallback(utc_or_local, year, month = 1, day = 1, hour = 0, min = 0, sec = 0, usec = 0) ⇒ Object

Returns a new Time if requested year can be accommodated by Ruby's Time class (i.e., if year is within either 1970..2038 or 1902..2038, depending on system architecture); otherwise returns a DateTime.



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 25

def time_with_datetime_fallback(utc_or_local, year, month=1, day=1, hour=0, min=0, sec=0, usec=0)
  time = ::Time.send(utc_or_local, year, month, day, hour, min, sec, usec)
  # This check is needed because Time.utc(y) returns a time object in the 2000s for 0 <= y <= 138.
  time.year == year ? time : ::DateTime.civil_from_format(utc_or_local, year, month, day, hour, min, sec)
rescue
  ::DateTime.civil_from_format(utc_or_local, year, month, day, hour, min, sec)
end

.use_zone(time_zone) ⇒ Object

Allows override of Time.zone locally inside supplied block; resets Time.zone to existing value when done.



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# File 'activesupport/lib/active_support/core_ext/time/zones.rb', line 41

def use_zone(time_zone)
  new_zone = find_zone!(time_zone)
  begin
    old_zone, ::Time.zone = ::Time.zone, new_zone
    yield
  ensure
    ::Time.zone = old_zone
  end
end

.utc_time(*args) ⇒ Object

Wraps class method time_with_datetime_fallback with utc_or_local set to :utc.



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 34

def utc_time(*args)
  time_with_datetime_fallback(:utc, *args)
end

.zoneObject

Returns the TimeZone for the current request, if this has been set (via Time.zone=). If Time.zone has not been set for the current request, returns the TimeZone specified in config.time_zone.



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# File 'activesupport/lib/active_support/core_ext/time/zones.rb', line 9

def zone
  Thread.current[:time_zone] || zone_default
end

.zone=(time_zone) ⇒ Object

Sets Time.zone to a TimeZone object for the current request/thread.

This method accepts any of the following:

  • A Rails TimeZone object.

  • An identifier for a Rails TimeZone object (e.g., “Eastern Time (US & Canada)”, -5.hours).

  • A TZInfo::Timezone object.

  • An identifier for a TZInfo::Timezone object (e.g., “America/New_York”).

Here's an example of how you might set Time.zone on a per request basis and reset it when the request is done. current_user.time_zone just needs to return a string identifying the user's preferred time zone:

class ApplicationController < ActionController::Base
  around_filter :set_time_zone

  def set_time_zone
    old_time_zone = Time.zone
    Time.zone = current_user.time_zone if logged_in?
    yield
  ensure
    Time.zone = old_time_zone
  end
end


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# File 'activesupport/lib/active_support/core_ext/time/zones.rb', line 36

def zone=(time_zone)
  Thread.current[:time_zone] = find_zone!(time_zone)
end

Instance Method Details

#_dump(*args) ⇒ Object



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# File 'activesupport/lib/active_support/core_ext/time/marshal.rb', line 20

def _dump(*args)
  obj = dup
  obj.instance_variable_set('@marshal_with_utc_coercion', utc?)
  obj._dump_without_utc_flag(*args)
end

#_dump_without_utc_flagObject



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# File 'activesupport/lib/active_support/core_ext/time/marshal.rb', line 19

alias_method :_dump_without_utc_flag, :_dump

#_dump_without_zoneObject



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# File 'activesupport/lib/active_support/core_ext/time/marshal.rb', line 50

def _dump(*args)
  obj = dup
  obj.instance_variable_set('@marshal_with_utc_coercion', utc?)
  obj._dump_without_utc_flag(*args)
end

#acts_like_time?Boolean

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

Returns:

  • (Boolean)


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# File 'activesupport/lib/active_support/core_ext/time/acts_like.rb', line 5

def acts_like_time?
  true
end

#advance(options) ⇒ Object

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.



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 89

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

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

  d = to_date.advance(options)
  time_advanced_by_date = change(:year => d.year, :month => d.month, :day => d.day)
  seconds_to_advance = (options[:seconds] || 0) + (options[:minutes] || 0) * 60 + (options[:hours] || 0) * 3600
  seconds_to_advance == 0 ? time_advanced_by_date : time_advanced_by_date.since(seconds_to_advance)
end

#ago(seconds) ⇒ Object

Returns a new Time representing the time a number of seconds ago, this is basically a wrapper around the Numeric extension



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 107

def ago(seconds)
  since(-seconds)
end

#as_json(options = nil) ⇒ Object

:nodoc:



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

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

#beginning_of_dayObject Also known as: midnight, at_midnight, at_beginning_of_day

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



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 190

def beginning_of_day
  #(self - seconds_since_midnight).change(:usec => 0)
  change(:hour => 0)
end

#beginning_of_monthObject Also known as: at_beginning_of_month

Returns a new Time representing the start of the month (1st of the month, 0:00)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 204

def beginning_of_month
  #self - ((self.mday-1).days + self.seconds_since_midnight)
  change(:day => 1, :hour => 0)
end

#beginning_of_quarterObject Also known as: at_beginning_of_quarter

Returns a new Time representing the start of the quarter (1st of january, april, july, october, 0:00)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 219

def beginning_of_quarter
  beginning_of_month.change(:month => [10, 7, 4, 1].detect { |m| m <= month })
end

#beginning_of_weekObject Also known as: monday, at_beginning_of_week

Returns a new Time representing the “start” of this week (Monday, 0:00)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 165

def beginning_of_week
  days_to_monday = wday!=0 ? wday-1 : 6
  (self - days_to_monday.days).midnight
end

#beginning_of_yearObject Also known as: at_beginning_of_year

Returns a new Time representing the start of the year (1st of january, 0:00)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 231

def beginning_of_year
  change(:month => 1, :day => 1, :hour => 0)
end

#change(options) ⇒ Object

Returns a new Time where one or more of the elements have been changed according to the options parameter. The time options (hour, minute, sec, usec) reset cascadingly, so if only the hour is passed, then minute, sec, and usec is set to 0. If the hour and minute is passed, then sec and usec is set to 0.



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 72

def change(options)
  ::Time.send(
    utc? ? :utc_time : :local_time,
    options[:year]  || year,
    options[:month] || month,
    options[:day]   || day,
    options[:hour]  || hour,
    options[:min]   || (options[:hour] ? 0 : min),
    options[:sec]   || ((options[:hour] || options[:min]) ? 0 : sec),
    options[:usec]  || ((options[:hour] || options[:min] || options[:sec]) ? 0 : usec)
  )
end

#compare_with_coercion(other) ⇒ Object Also known as: <=>

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



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 284

def compare_with_coercion(other)
  # we're avoiding Time#to_datetime cause it's expensive
  other.is_a?(Time) ? compare_without_coercion(other.to_time) : to_datetime <=> other
end

#end_of_dayObject

Returns a new Time representing the end of the day, 23:59:59.999999 (.999999999 in ruby1.9)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 199

def end_of_day
  change(:hour => 23, :min => 59, :sec => 59, :usec => 999999.999)
end

#end_of_monthObject Also known as: at_end_of_month

Returns a new Time representing the end of the month (end of the last day of the month)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 211

def end_of_month
  #self - ((self.mday-1).days + self.seconds_since_midnight)
  last_day = ::Time.days_in_month(month, year)
  change(:day => last_day, :hour => 23, :min => 59, :sec => 59, :usec => 999999.999)
end

#end_of_quarterObject Also known as: at_end_of_quarter

Returns a new Time representing the end of the quarter (end of the last day of march, june, september, december)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 225

def end_of_quarter
  beginning_of_month.change(:month => [3, 6, 9, 12].detect { |m| m >= month }).end_of_month
end

#end_of_weekObject Also known as: at_end_of_week

Returns a new Time representing the end of this week, (end of Sunday)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 173

def end_of_week
  days_to_sunday = wday!=0 ? 7-wday : 0
  (self + days_to_sunday.days).end_of_day
end

#end_of_yearObject Also known as: at_end_of_year

Returns a new Time representing the end of the year (end of the 31st of december)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 237

def end_of_year
  change(:month => 12, :day => 31, :hour => 23, :min => 59, :sec => 59, :usec => 999999.999)
end

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

Returns the UTC offset as an +HH:MM formatted string.

Time.local(2000).formatted_offset         # => "-06:00"
Time.local(2000).formatted_offset(false)  # => "-0600"


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# File 'activesupport/lib/active_support/core_ext/time/conversions.rb', line 54

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

#future?Boolean

Tells whether the Time object's time lies in the future

Returns:

  • (Boolean)


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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 60

def future?
  self > ::Time.current
end

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

Returns the simultaneous time in Time.zone.

Time.zone = 'Hawaii'         # => 'Hawaii'
Time.utc(2000).in_time_zone  # => Fri, 31 Dec 1999 14:00:00 HST -10:00

This method is similar to Time#localtime, except that it uses Time.zone as the local zone instead of the operating system's time zone.

You can also pass in a TimeZone instance or string that identifies a TimeZone as an argument, and the conversion will be based on that zone instead of Time.zone.

Time.utc(2000).in_time_zone('Alaska')  # => Fri, 31 Dec 1999 15:00:00 AKST -09:00


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# File 'activesupport/lib/active_support/core_ext/time/zones.rb', line 81

def in_time_zone(zone = ::Time.zone)
  return self unless zone

  ActiveSupport::TimeWithZone.new(utc? ? self : getutc, ::Time.find_zone!(zone))
end

#minus_with_coercion(other) ⇒ Object Also known as: -

Time#- can also be used to determine the number of seconds between two Time instances. We're layering on additional behavior so that ActiveSupport::TimeWithZone instances are coerced into values that Time#- will recognize



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 275

def minus_with_coercion(other)
  other = other.comparable_time if other.respond_to?(:comparable_time)
  other.is_a?(DateTime) ? to_f - other.to_f : minus_without_coercion(other)
end

#minus_with_duration(other) ⇒ Object

:nodoc:



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 262

def minus_with_duration(other) #:nodoc:
  if ActiveSupport::Duration === other
    other.until(self)
  else
    minus_without_duration(other)
  end
end

#months_ago(months) ⇒ Object

Returns a new Time representing the time a number of specified months ago



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

def months_ago(months)
  advance(:months => -months)
end

#months_since(months) ⇒ Object

Returns a new Time representing the time a number of specified months in the future



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

def months_since(months)
  advance(:months => months)
end

#next_monthObject

Short-hand for months_since(1)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 160

def next_month
  months_since(1)
end

#next_week(day = :monday) ⇒ Object

Returns a new Time representing the start of the given day in next week (default is Monday).



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 185

def next_week(day = :monday)
  since(1.week).beginning_of_week.since(DAYS_INTO_WEEK[day].day).change(:hour => 0)
end

#next_yearObject

Short-hand for years_since(1)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 150

def next_year
  years_since(1)
end

#past?Boolean

Tells whether the Time object's time lies in the past

Returns:

  • (Boolean)


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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 50

def past?
  self < ::Time.current
end

#plus_with_duration(other) ⇒ Object Also known as: +

:nodoc:



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 252

def plus_with_duration(other) #:nodoc:
  if ActiveSupport::Duration === other
    other.since(self)
  else
    plus_without_duration(other)
  end
end

#prev_monthObject

Short-hand for months_ago(1)



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

def prev_month
  months_ago(1)
end

#prev_week(day = :monday) ⇒ Object

Returns a new Time representing the start of the given day in the previous week (default is Monday).



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 180

def prev_week(day = :monday)
  ago(1.week).beginning_of_week.since(DAYS_INTO_WEEK[day].day).change(:hour => 0)
end

#prev_yearObject

Short-hand for years_ago(1)



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 145

def prev_year
  years_ago(1)
end

#seconds_since_midnightObject

Seconds since midnight: Time.now.seconds_since_midnight



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 65

def seconds_since_midnight
  to_i - change(:hour => 0).to_i + (usec / 1.0e+6)
end

#since(seconds) ⇒ Object Also known as: in

Returns a new Time representing the time a number of seconds since the instance time



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 112

def since(seconds)
  self + seconds
rescue
  to_datetime.since(seconds)
end

#to_dateObject

Converts a Time object to a Date, dropping hour, minute, and second precision.

my_time = Time.now  # => Mon Nov 12 22:59:51 -0500 2007
my_time.to_date     # => Mon, 12 Nov 2007

your_time = Time.parse("1/13/2009 1:13:03 P.M.")  # => Tue Jan 13 13:13:03 -0500 2009
your_time.to_date                                 # => Tue, 13 Jan 2009


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# File 'activesupport/lib/active_support/core_ext/time/conversions.rb', line 65

def to_date
  ::Date.new(year, month, day)
end

#to_datetimeObject

Converts a Time instance to a Ruby DateTime instance, preserving UTC offset.

my_time = Time.now    # => Mon Nov 12 23:04:21 -0500 2007
my_time.to_datetime   # => Mon, 12 Nov 2007 23:04:21 -0500

your_time = Time.parse("1/13/2009 1:13:03 P.M.")  # => Tue Jan 13 13:13:03 -0500 2009
your_time.to_datetime                             # => Tue, 13 Jan 2009 13:13:03 -0500


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# File 'activesupport/lib/active_support/core_ext/time/conversions.rb', line 82

def to_datetime
  ::DateTime.civil(year, month, day, hour, min, sec, Rational(utc_offset, 86400))
end

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

Converts to a formatted string. See DATE_FORMATS for builtin formats.

This method is aliased to to_s.

time = Time.now                     # => Thu Jan 18 06:10:17 CST 2007

time.to_formatted_s(:time)          # => "06:10"
time.to_s(:time)                    # => "06:10"

time.to_formatted_s(:db)            # => "2007-01-18 06:10:17"
time.to_formatted_s(:number)        # => "20070118061017"
time.to_formatted_s(:short)         # => "18 Jan 06:10"
time.to_formatted_s(:long)          # => "January 18, 2007 06:10"
time.to_formatted_s(:long_ordinal)  # => "January 18th, 2007 06:10"
time.to_formatted_s(:rfc822)        # => "Thu, 18 Jan 2007 06:10:17 -0600"

Adding your own time formats to to_formatted_s

You can add your own formats 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 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}") }


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# File 'activesupport/lib/active_support/core_ext/time/conversions.rb', line 40

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

#to_timeObject

A method to keep Time, Date and DateTime instances interchangeable on conversions. In this case, it simply returns self.



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# File 'activesupport/lib/active_support/core_ext/time/conversions.rb', line 71

def to_time
  self
end

#today?Boolean

Tells whether the Time object's time is today

Returns:

  • (Boolean)


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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 55

def today?
  to_date == ::Date.current
end

#tomorrowObject

Convenience method which returns a new Time representing the time 1 day since the instance time



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 248

def tomorrow
  advance(:days => 1)
end

#weeks_ago(weeks) ⇒ Object

Returns a new Time representing the time a number of specified weeks ago.



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 120

def weeks_ago(weeks)
  advance(:weeks => -weeks)
end

#years_ago(years) ⇒ Object

Returns a new Time representing the time a number of specified years ago



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

def years_ago(years)
  advance(:years => -years)
end

#years_since(years) ⇒ Object

Returns a new Time representing the time a number of specified years in the future



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

def years_since(years)
  advance(:years => years)
end

#yesterdayObject

Convenience method which returns a new Time representing the time 1 day ago



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# File 'activesupport/lib/active_support/core_ext/time/calculations.rb', line 243

def yesterday
  advance(:days => -1)
end