"Tue, 20 Aug 2024 19:21:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240820
Only TIME
19:21:19
General datetime
2024-08-20 19:21:19Z
For Database
2024-08-20 19:21:19
For HTTP1.1
Tue, 20 Aug 2024 19:21:19 GMT