"Sat, 21 Sep 2024 07:45:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
07:45:55
General datetime
2024-09-21 07:45:55Z
For Database
2024-09-21 07:45:55
For HTTP1.1
Sat, 21 Sep 2024 07:45:55 GMT