"Fri, 21 Jun 2024 20:19:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
20:19:18
General datetime
2024-06-21 20:19:18Z
For Database
2024-06-21 20:19:18
For HTTP1.1
Fri, 21 Jun 2024 20:19:18 GMT