"Sat, 21 Sep 2024 17:49:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
17:49:30
General datetime
2024-09-21 17:49:30Z
For Database
2024-09-21 17:49:30
For HTTP1.1
Sat, 21 Sep 2024 17:49:30 GMT