"Sat, 21 Sep 2024 20:30:07"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
20:30:07
General datetime
2024-09-21 20:30:07Z
For Database
2024-09-21 20:30:07
For HTTP1.1
Sat, 21 Sep 2024 20:30:07 GMT