"Sat, 20 Jul 2024 20:10:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
20:10:35
General datetime
2024-07-20 20:10:35Z
For Database
2024-07-20 20:10:35
For HTTP1.1
Sat, 20 Jul 2024 20:10:35 GMT