"Sat, 21 Sep 2024 21:46:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
21:46:10
General datetime
2024-09-21 21:46:10Z
For Database
2024-09-21 21:46:10
For HTTP1.1
Sat, 21 Sep 2024 21:46:10 GMT