"Mon, 15 Jul 2024 21:16:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
21:16:34
General datetime
2024-07-15 21:16:34Z
For Database
2024-07-15 21:16:34
For HTTP1.1
Mon, 15 Jul 2024 21:16:34 GMT