"Mon, 17 Jun 2024 23:45:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240617
Only TIME
23:45:45
General datetime
2024-06-17 23:45:45Z
For Database
2024-06-17 23:45:45
For HTTP1.1
Mon, 17 Jun 2024 23:45:45 GMT