"Fri, 21 Jun 2024 09:08:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
09:08:09
General datetime
2024-06-21 09:08:09Z
For Database
2024-06-21 09:08:09
For HTTP1.1
Fri, 21 Jun 2024 09:08:09 GMT