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Editorial Team
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Editorial Team
Asked: May 26, 20262026-05-26T22:18:21+00:00 2026-05-26T22:18:21+00:00

I want to use the ActiveSupport extensions 3600.seconds syntax in a plain Ruby file

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I want to use the ActiveSupport extensions 3600.seconds syntax in a plain Ruby file but I’m having trouble finding the right ActiveSupport file to require.

As far as I can work out from the guides, I need to require "active_support/core_ext/date/calculations". That doesn’t seem to do it though

NoMethodError:
   undefined method `seconds' for 3600:Fixnum
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  1. Editorial Team
    Editorial Team
    2026-05-26T22:18:21+00:00Added an answer on May 26, 2026 at 10:18 pm

    In activesupport that goes with Rails 3.1 this extension is in active_support/core_ext/numeric/time. You can see it here.

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