"Sat, 20 Jul 2024 14:30:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
14:30:10
General datetime
2024-07-20 14:30:10Z
For Database
2024-07-20 14:30:10
For HTTP1.1
Sat, 20 Jul 2024 14:30:10 GMT