"Tue, 14 May 2024 14:38:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240514
Only TIME
14:38:02
General datetime
2024-05-14 14:38:02Z
For Database
2024-05-14 14:38:02
For HTTP1.1
Tue, 14 May 2024 14:38:02 GMT