"Mon, 15 Jul 2024 03:38:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
03:38:20
General datetime
2024-07-15 03:38:20Z
For Database
2024-07-15 03:38:20
For HTTP1.1
Mon, 15 Jul 2024 03:38:20 GMT