"Sat, 21 Sep 2024 09:20:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
09:20:57
General datetime
2024-09-21 09:20:57Z
For Database
2024-09-21 09:20:57
For HTTP1.1
Sat, 21 Sep 2024 09:20:57 GMT