"Mon, 23 Sep 2024 23:39:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240923
Only TIME
23:39:21
General datetime
2024-09-23 23:39:21Z
For Database
2024-09-23 23:39:21
For HTTP1.1
Mon, 23 Sep 2024 23:39:21 GMT