"Tue, 21 May 2024 14:47:26"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
14:47:26
General datetime
2024-05-21 14:47:26Z
For Database
2024-05-21 14:47:26
For HTTP1.1
Tue, 21 May 2024 14:47:26 GMT