I'm not sure which one I should use:

Created in ____


Created at ____

1 Answer 1


On for days and dates, in for duration, at for precise times, including full dates that include the time:

Created in 3 hours and 15 minutes.

Created on the 13th of July

Created on 2013-07-13

Created at 14:35

Created at 2013-07-13 14:35

Created at 2013-07-13T14:35:00Z (when ISO dates are appropriate).

  • Thanks for this explanation - I've been wondering about this Aug 29, 2018 at 19:09
  • Thanks. What about nothing? I mean something like "Created 2013-07-13". Aug 14, 2019 at 15:29

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