"Sat, 21 Sep 2024 07:24:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
07:24:18
General datetime
2024-09-21 07:24:18Z
For Database
2024-09-21 07:24:18
For HTTP1.1
Sat, 21 Sep 2024 07:24:18 GMT