"Sat, 21 Sep 2024 16:40:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
16:40:33
General datetime
2024-09-21 16:40:33Z
For Database
2024-09-21 16:40:33
For HTTP1.1
Sat, 21 Sep 2024 16:40:33 GMT