"Fri, 21 Jun 2024 23:09:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
23:09:45
General datetime
2024-06-21 23:09:45Z
For Database
2024-06-21 23:09:45
For HTTP1.1
Fri, 21 Jun 2024 23:09:45 GMT