"Sat, 21 Sep 2024 09:45:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
09:45:52
General datetime
2024-09-21 09:45:52Z
For Database
2024-09-21 09:45:52
For HTTP1.1
Sat, 21 Sep 2024 09:45:52 GMT