"Tue, 20 Aug 2024 15:45:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240820
Only TIME
15:45:13
General datetime
2024-08-20 15:45:13Z
For Database
2024-08-20 15:45:13
For HTTP1.1
Tue, 20 Aug 2024 15:45:13 GMT