"Fri, 21 Jun 2024 11:45:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
11:45:19
General datetime
2024-06-21 11:45:19Z
For Database
2024-06-21 11:45:19
For HTTP1.1
Fri, 21 Jun 2024 11:45:19 GMT