"Sat, 20 Jul 2024 17:58:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
17:58:15
General datetime
2024-07-20 17:58:15Z
For Database
2024-07-20 17:58:15
For HTTP1.1
Sat, 20 Jul 2024 17:58:15 GMT