ActiveSupport::Duration

• activesupport/lib/active_support/duration.rb

Provides accurate date and time measurements using Date#advance and Time#advance, respectively. It mainly supports the methods on Numeric, such as in this example:

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

• +
• -
• ==
• ago
• from_now
• since
• until

Adds another Duration or a Numeric to this Duration. Numeric values are treated as seconds.

Subtracts another Duration or a Numeric from this Duration. Numeric values are treated as seconds.

Returns true if other is also a Duration instance with the same value, or if other == value.

Calculates a new Time or Date that is as far in the past as this Duration represents.

Alias for since

Calculates a new Time or Date that is as far in the future as this Duration represents.

Alias for ago