"Sat, 21 Sep 2024 20:40:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
20:40:32
General datetime
2024-09-21 20:40:32Z
For Database
2024-09-21 20:40:32
For HTTP1.1
Sat, 21 Sep 2024 20:40:32 GMT