"Fri, 20 Sep 2024 20:48:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240920
Only TIME
20:48:56
General datetime
2024-09-20 20:48:56Z
For Database
2024-09-20 20:48:56
For HTTP1.1
Fri, 20 Sep 2024 20:48:56 GMT