"Mon, 20 May 2024 07:59:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
07:59:18
General datetime
2024-05-20 07:59:18Z
For Database
2024-05-20 07:59:18
For HTTP1.1
Mon, 20 May 2024 07:59:18 GMT