"Sat, 20 Apr 2024 08:54:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
08:54:14
General datetime
2024-04-20 08:54:14Z
For Database
2024-04-20 08:54:14
For HTTP1.1
Sat, 20 Apr 2024 08:54:14 GMT