"Sat, 21 Sep 2024 23:51:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
23:51:37
General datetime
2024-09-21 23:51:37Z
For Database
2024-09-21 23:51:37
For HTTP1.1
Sat, 21 Sep 2024 23:51:37 GMT