"Sat, 20 Jul 2024 13:36:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
13:36:39
General datetime
2024-07-20 13:36:39Z
For Database
2024-07-20 13:36:39
For HTTP1.1
Sat, 20 Jul 2024 13:36:39 GMT