"Fri, 21 Jun 2024 13:28:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
13:28:33
General datetime
2024-06-21 13:28:33Z
For Database
2024-06-21 13:28:33
For HTTP1.1
Fri, 21 Jun 2024 13:28:33 GMT