"Mon, 16 Sep 2024 20:39:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240916
Only TIME
20:39:04
General datetime
2024-09-16 20:39:04Z
For Database
2024-09-16 20:39:04
For HTTP1.1
Mon, 16 Sep 2024 20:39:04 GMT