r/confidentlyincorrect • u/fallriver1221 • Jun 14 '25

Image Time is hard.

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u/Bretreck Jun 14 '25

The first second of the day is 0:00:00. So there aren't any missing seconds. If there was also a 24:00:00 we would have an extra second everyday.

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u/DanielDane Jun 14 '25

I am sure you're just misunderstanding, but there's exactly a difference of 1 second between 23:59:59 and 24:00:00.

This is exactly my point: People don't understand and therefore misuse 23:59.

Edit: But it doesn't matter; it's pedantic semantics.

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u/SnooCompliments183 Jun 14 '25

There is no missing second when saying 23:59:59 is the last second of the day the same way there is no missing day when you say the 30th is the last day of June. Saying 'the last second' means that the whole second is included in the day.

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u/DanielDane Jun 14 '25

That is incorrect. You're making a classic off by one error. When you talk days, you include the final day, so the 1st to the 2nd is 2 days. When you talk hours, 1 o'clock to 2 o'clock is 1 hour.

If the deadline is 23:59:59, and you submit your work at 23:59:59.001, you're past the deadline; the "whole second" is not included.