"Sat, 21 Sep 2024 20:17:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
20:17:34
General datetime
2024-09-21 20:17:34Z
For Database
2024-09-21 20:17:34
For HTTP1.1
Sat, 21 Sep 2024 20:17:34 GMT