"Mon, 20 May 2024 23:29:07"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
23:29:07
General datetime
2024-05-20 23:29:07Z
For Database
2024-05-20 23:29:07
For HTTP1.1
Mon, 20 May 2024 23:29:07 GMT