"Sat, 20 Apr 2024 20:20:04"

Convert date and time to unixtime.

1713644404

Another datetime format string at UTC

YYYYMMDD
20240420

Only TIME
20:20:04

General datetime
2024-04-20 20:20:04Z

For Database
2024-04-20 20:20:04

For HTTP1.1
Sat, 20 Apr 2024 20:20:04 GMT

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