"Fri, 20 Sep 2024 21:55:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240920
Only TIME
21:55:42
General datetime
2024-09-20 21:55:42Z
For Database
2024-09-20 21:55:42
For HTTP1.1
Fri, 20 Sep 2024 21:55:42 GMT