"Sat, 21 Sep 2024 23:34:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
23:34:35
General datetime
2024-09-21 23:34:35Z
For Database
2024-09-21 23:34:35
For HTTP1.1
Sat, 21 Sep 2024 23:34:35 GMT