"Sat, 20 Jul 2024 06:40:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
06:40:50
General datetime
2024-07-20 06:40:50Z
For Database
2024-07-20 06:40:50
For HTTP1.1
Sat, 20 Jul 2024 06:40:50 GMT