"Sat, 21 Sep 2024 21:54:37"

Convert date and time to unixtime.

1726955677

Another datetime format string at UTC

YYYYMMDD
20240921

Only TIME
21:54:37

General datetime
2024-09-21 21:54:37Z

For Database
2024-09-21 21:54:37

For HTTP1.1
Sat, 21 Sep 2024 21:54:37 GMT


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