"Tue, 21 May 2024 09:08:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
09:08:01
General datetime
2024-05-21 09:08:01Z
For Database
2024-05-21 09:08:01
For HTTP1.1
Tue, 21 May 2024 09:08:01 GMT