"Mon, 23 Sep 2024 20:39:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240923
Only TIME
20:39:11
General datetime
2024-09-23 20:39:11Z
For Database
2024-09-23 20:39:11
For HTTP1.1
Mon, 23 Sep 2024 20:39:11 GMT