"Mon, 16 Sep 2024 06:21:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240916
Only TIME
06:21:15
General datetime
2024-09-16 06:21:15Z
For Database
2024-09-16 06:21:15
For HTTP1.1
Mon, 16 Sep 2024 06:21:15 GMT