"Sat, 21 Sep 2024 18:35:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
18:35:25
General datetime
2024-09-21 18:35:25Z
For Database
2024-09-21 18:35:25
For HTTP1.1
Sat, 21 Sep 2024 18:35:25 GMT