"Sat, 21 Sep 2024 10:21:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
10:21:23
General datetime
2024-09-21 10:21:23Z
For Database
2024-09-21 10:21:23
For HTTP1.1
Sat, 21 Sep 2024 10:21:23 GMT