"Thu, 18 Jul 2024 18:38:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240718
Only TIME
18:38:15
General datetime
2024-07-18 18:38:15Z
For Database
2024-07-18 18:38:15
For HTTP1.1
Thu, 18 Jul 2024 18:38:15 GMT