"Sat, 21 Sep 2024 19:44:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
19:44:56
General datetime
2024-09-21 19:44:56Z
For Database
2024-09-21 19:44:56
For HTTP1.1
Sat, 21 Sep 2024 19:44:56 GMT