"Fri, 21 Jun 2024 17:42:24"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
17:42:24
General datetime
2024-06-21 17:42:24Z
For Database
2024-06-21 17:42:24
For HTTP1.1
Fri, 21 Jun 2024 17:42:24 GMT