"Fri, 21 Jun 2024 16:10:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
16:10:36
General datetime
2024-06-21 16:10:36Z
For Database
2024-06-21 16:10:36
For HTTP1.1
Fri, 21 Jun 2024 16:10:36 GMT