"Fri, 20 Sep 2024 21:38:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240920
Only TIME
21:38:40
General datetime
2024-09-20 21:38:40Z
For Database
2024-09-20 21:38:40
For HTTP1.1
Fri, 20 Sep 2024 21:38:40 GMT