"Wed, 21 Aug 2024 03:18:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
03:18:17
General datetime
2024-08-21 03:18:17Z
For Database
2024-08-21 03:18:17
For HTTP1.1
Wed, 21 Aug 2024 03:18:17 GMT