"Mon, 13 May 2024 18:05:43"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240513
Only TIME
18:05:43
General datetime
2024-05-13 18:05:43Z
For Database
2024-05-13 18:05:43
For HTTP1.1
Mon, 13 May 2024 18:05:43 GMT