Comparing times in Rails

Question

I am using this code to compare times:

(time1.to_i - time2.to_i).abs < 5

The intention is that if two times are measured within 5 seconds from each other, they will be equal. I'm using it to compare updating of records, so 5 seconds is acceptable as a buffer, and stops the code returning false when the records are only splitseconds apart.

Is there a better way to do this?

There's a gem called time_difference. It isn't actively maintained, but it's easy to follow and incorporate. It gives you syntax like this: TimeDifference.between(start_time, end_time).in_years. — moveson
– moveson, Commented May 22, 2017 at 1:42

Adam Sheehan · Accepted Answer · 2017-05-22 03:31:40Z

In Ruby, you can subtract two Time objects directly to get the difference in seconds. Rails provides some convenience helpers on integers to convert them into seconds as well:

(time1 - time2).abs < 5.seconds

If you know that time2 always comes after time1, you can get rid of the abs:

time2 - time1 < 5.seconds

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