Question

when does our 24 hours day start

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Answer 1

Answer:

Under the 24-hour clock system, the day begins at midnight, 00:00, and the last minute of the day begins at 23:59 and ends at 24:00, which is identical to 00:00 of the following day. 12:00 can only be mid-day.

Answer 2

Answer:

00:00 clock at mid night