Hi@MostafaGamal,
Based on the issue that you mentioned, do you want to patch the real date to your SP list?
Do you mean that the date in SharePoint is different from the date selected in PowerApps?
The reason why you met this problem is that:
SharePoint's default time zone is based on your set in the Site Settings
PowerApps' default time zone is local time zone.
So when PowerApps load time, it will transfer to local time automatically.
Please check the difference as follows.
// Date time in PowerApps:
You can see that if I don't change the Date time zone into UTC, the PowerApps will always load Beijing time zone by default because I am located in China.

// Date time in SharePoint:
You can go to Site information->View all site settings->Regional settings to set your time zone.
Please change the time zone and Locale to your current location and time zone.
Then the time zone will be same in PowerApps and SharePoint.
When you loading time from the SharePoint list, date time will not change.
Please check if this could work for you.

Regards,
Qi