"Fri, 21 Jun 2024 19:19:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
19:19:38
General datetime
2024-06-21 19:19:38Z
For Database
2024-06-21 19:19:38
For HTTP1.1
Fri, 21 Jun 2024 19:19:38 GMT