"Sat, 20 Jul 2024 23:43:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
23:43:35
General datetime
2024-07-20 23:43:35Z
For Database
2024-07-20 23:43:35
For HTTP1.1
Sat, 20 Jul 2024 23:43:35 GMT