"Fri, 21 Jun 2024 17:31:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
17:31:15
General datetime
2024-06-21 17:31:15Z
For Database
2024-06-21 17:31:15
For HTTP1.1
Fri, 21 Jun 2024 17:31:15 GMT