"Mon, 16 Sep 2024 20:21:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240916
Only TIME
20:21:11
General datetime
2024-09-16 20:21:11Z
For Database
2024-09-16 20:21:11
For HTTP1.1
Mon, 16 Sep 2024 20:21:11 GMT