"Mon, 03 Jun 2024 21:03:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240603
Only TIME
21:03:45
General datetime
2024-06-03 21:03:45Z
For Database
2024-06-03 21:03:45
For HTTP1.1
Mon, 03 Jun 2024 21:03:45 GMT