"Sat, 21 Sep 2024 09:55:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
09:55:50
General datetime
2024-09-21 09:55:50Z
For Database
2024-09-21 09:55:50
For HTTP1.1
Sat, 21 Sep 2024 09:55:50 GMT