"Tue, 13 Aug 2024 21:16:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240813
Only TIME
21:16:15
General datetime
2024-08-13 21:16:15Z
For Database
2024-08-13 21:16:15
For HTTP1.1
Tue, 13 Aug 2024 21:16:15 GMT