"Thu, 15 Aug 2024 19:21:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240815
Only TIME
19:21:15
General datetime
2024-08-15 19:21:15Z
For Database
2024-08-15 19:21:15
For HTTP1.1
Thu, 15 Aug 2024 19:21:15 GMT