Enables the use of time calculations and declarations, like 45.minutes + 2.hours + 4.years.

These methods use Time#advance for precise date calculations when using from_now, ago, etc. as well as adding or subtracting their results from a Time object. For example: 

  # equivalent to Time.now.advance(:months => 1)
  1.month.from_now

  # equivalent to Time.now.advance(:years => 2)
  2.years.from_now

  # equivalent to Time.now.advance(:months => 4, :years => 5)
  (4.months + 5.years).from_now

While these methods provide precise calculation when used as in the examples above, care should be taken to note that this is not true if the result of `months’, `years’, etc is converted before use: 

  # equivalent to 30.days.to_i.from_now
  1.month.to_i.from_now

  # equivalent to 365.25.days.to_f.from_now
  1.year.to_f.from_now

In such cases, Ruby‘s core Date and Time should be used for precision date and time arithmetic

Methods
Public Instance methods
ago(time = ::Time.now)

Reads best without arguments: 10.minutes.ago

This method is also aliased as until

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 74
74:         def ago(time = ::Time.now)
75:           time - self
76:         end
day()

Alias for days

days()
This method is also aliased as day

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 48
48:         def days
49:           ActiveSupport::Duration.new(self * 24.hours, [[:days, self]])
50:         end
fortnight()

Alias for fortnights

fortnights()
This method is also aliased as fortnight

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 58
58:         def fortnights
59:           ActiveSupport::Duration.new(self * 2.weeks, [[:days, self * 14]])
60:         end
from_now(time = ::Time.now)

Alias for since

hour()

Alias for hours

hours()
This method is also aliased as hour

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 43
43:         def hours
44:           ActiveSupport::Duration.new(self * 3600, [[:seconds, self * 3600]])
45:         end
minute()

Alias for minutes

minutes()
This method is also aliased as minute

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 38
38:         def minutes
39:           ActiveSupport::Duration.new(self * 60, [[:seconds, self * 60]])
40:         end
month()

Alias for months

months()
This method is also aliased as month

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 63
63:         def months
64:           ActiveSupport::Duration.new(self * 30.days, [[:months, self]])
65:         end
second()

Alias for seconds

seconds()
This method is also aliased as second

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 33
33:         def seconds
34:           ActiveSupport::Duration.new(self, [[:seconds, self]])
35:         end
since(time = ::Time.now)

Reads best with argument: 10.minutes.since(time)

This method is also aliased as from_now

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 82
82:         def since(time = ::Time.now)
83:           time + self
84:         end
until(time = ::Time.now)

Alias for ago

week()

Alias for weeks

weeks()
This method is also aliased as week

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 53
53:         def weeks
54:           ActiveSupport::Duration.new(self * 7.days, [[:days, self * 7]])
55:         end
year()

Alias for years

years()
This method is also aliased as year

[ show source ]

    # File lib/active_support/core_ext/numeric/time.rb, line 68
68:         def years
69:           ActiveSupport::Duration.new(self * 365.25.days, [[:years, self]])
70:         end