"Sun, 21 Jul 2024 08:38:01"

Convert date and time to unixtime.

1721551081

Another datetime format string at UTC

YYYYMMDD
20240721

Only TIME
08:38:01

General datetime
2024-07-21 08:38:01Z

For Database
2024-07-21 08:38:01

For HTTP1.1
Sun, 21 Jul 2024 08:38:01 GMT

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