"Sun, 15 Sep 2024 08:49:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
08:49:54
General datetime
2024-09-15 08:49:54Z
For Database
2024-09-15 08:49:54
For HTTP1.1
Sun, 15 Sep 2024 08:49:54 GMT