Timestamp Converter

Unix/Linux timestamps are the number of seconds since midnight, January 1, 1970 GMT (referred to as the Epoch). They are much easier to programmatically manipulate than date/time strings. For example, if you need to refer to 10 days from today, it is easier to add (10 days * 24 hours * 60 minutes * 60 seconds) seconds to the current timestamp than it is to program all that "30 days hath September, April, June and November" horsepuckey.

After re-creating this simple script for several projects, it occurred to me - why not publish this somewhere so I can reuse it? So here it is.

Leave the fields empty for the current time or enter a timestamp or date string below, then click a button.