"Fri, 20 Sep 2024 09:21:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240920
Only TIME
09:21:15
General datetime
2024-09-20 09:21:15Z
For Database
2024-09-20 09:21:15
For HTTP1.1
Fri, 20 Sep 2024 09:21:15 GMT