"Mon, 20 May 2024 22:56:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
22:56:37
General datetime
2024-05-20 22:56:37Z
For Database
2024-05-20 22:56:37
For HTTP1.1
Mon, 20 May 2024 22:56:37 GMT