"Thu, 15 Aug 2024 20:18:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240815
Only TIME
20:18:19
General datetime
2024-08-15 20:18:19Z
For Database
2024-08-15 20:18:19
For HTTP1.1
Thu, 15 Aug 2024 20:18:19 GMT