"Mon, 19 Aug 2024 18:24:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
18:24:34
General datetime
2024-08-19 18:24:34Z
For Database
2024-08-19 18:24:34
For HTTP1.1
Mon, 19 Aug 2024 18:24:34 GMT