"Sat, 21 Sep 2024 17:24:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
17:24:15
General datetime
2024-09-21 17:24:15Z
For Database
2024-09-21 17:24:15
For HTTP1.1
Sat, 21 Sep 2024 17:24:15 GMT