"Tue, 21 May 2024 14:10:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
14:10:34
General datetime
2024-05-21 14:10:34Z
For Database
2024-05-21 14:10:34
For HTTP1.1
Tue, 21 May 2024 14:10:34 GMT