I like this solution.

However, my suggestion would be to use gmtime instead of localtime and use the same algorithm. But that of course depends upon what the OP is really trying to do. I didn't see anything in the problem statement about local time. Epoch time is a monotonically increasing number of seconds from an arbitrary start time. Weird things can happen when translating UTC (GMT) based time back into a local time.

For a wild example: Samoa changes Date/Time Line. Smaller versions of this happens when we change between Summer and Winter time.

In reply to Re^2: epoch reduction by Marshall
in thread epoch reduction by neilwatson

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