"Sat, 21 Sep 2024 11:15:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
11:15:02
General datetime
2024-09-21 11:15:02Z
For Database
2024-09-21 11:15:02
For HTTP1.1
Sat, 21 Sep 2024 11:15:02 GMT