"Sat, 21 Sep 2024 13:15:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
13:15:05
General datetime
2024-09-21 13:15:05Z
For Database
2024-09-21 13:15:05
For HTTP1.1
Sat, 21 Sep 2024 13:15:05 GMT