"Fri, 21 Jun 2024 21:08:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
21:08:25
General datetime
2024-06-21 21:08:25Z
For Database
2024-06-21 21:08:25
For HTTP1.1
Fri, 21 Jun 2024 21:08:25 GMT