"Mon, 15 Apr 2024 19:59:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240415
Only TIME
19:59:30
General datetime
2024-04-15 19:59:30Z
For Database
2024-04-15 19:59:30
For HTTP1.1
Mon, 15 Apr 2024 19:59:30 GMT