"Thu, 15 Aug 2024 14:12:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240815
Only TIME
14:12:15
General datetime
2024-08-15 14:12:15Z
For Database
2024-08-15 14:12:15
For HTTP1.1
Thu, 15 Aug 2024 14:12:15 GMT