"Sat, 21 Sep 2024 12:45:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
12:45:37
General datetime
2024-09-21 12:45:37Z
For Database
2024-09-21 12:45:37
For HTTP1.1
Sat, 21 Sep 2024 12:45:37 GMT