"Fri, 21 Jun 2024 15:08:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
15:08:17
General datetime
2024-06-21 15:08:17Z
For Database
2024-06-21 15:08:17
For HTTP1.1
Fri, 21 Jun 2024 15:08:17 GMT