"Mon, 03 Jun 2024 15:45:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240603
Only TIME
15:45:17
General datetime
2024-06-03 15:45:17Z
For Database
2024-06-03 15:45:17
For HTTP1.1
Mon, 03 Jun 2024 15:45:17 GMT