"Sat, 21 Sep 2024 12:52:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
12:52:16
General datetime
2024-09-21 12:52:16Z
For Database
2024-09-21 12:52:16
For HTTP1.1
Sat, 21 Sep 2024 12:52:16 GMT