"Tue, 21 May 2024 20:20:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
20:20:02
General datetime
2024-05-21 20:20:02Z
For Database
2024-05-21 20:20:02
For HTTP1.1
Tue, 21 May 2024 20:20:02 GMT