"Fri, 21 Jun 2024 08:43:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
08:43:45
General datetime
2024-06-21 08:43:45Z
For Database
2024-06-21 08:43:45
For HTTP1.1
Fri, 21 Jun 2024 08:43:45 GMT