"Mon, 16 Sep 2024 18:16:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240916
Only TIME
18:16:16
General datetime
2024-09-16 18:16:16Z
For Database
2024-09-16 18:16:16
For HTTP1.1
Mon, 16 Sep 2024 18:16:16 GMT