"Fri, 21 Jun 2024 21:30:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
21:30:17
General datetime
2024-06-21 21:30:17Z
For Database
2024-06-21 21:30:17
For HTTP1.1
Fri, 21 Jun 2024 21:30:17 GMT