"Sat, 21 Sep 2024 15:52:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
15:52:01
General datetime
2024-09-21 15:52:01Z
For Database
2024-09-21 15:52:01
For HTTP1.1
Sat, 21 Sep 2024 15:52:01 GMT