What primarily determines the displayed value of the localized DateTime attribute in the client?

The displayed value of a localized DateTime attribute in the client is primarily determined by the Client time zone. This is because the Mendix client adapts the display of DateTime values to the local time settings of the device or environment where the client is running. Users might be in different geographic locations, and the client adjusts the DateTime accordingly to ensure that the user sees the time relevant to their specific context.

While the other time zones mentioned play roles in data handling at different levels—such as the App time zone for server-side processing, the User time zone for personal user settings, and the Database time zone for how data is stored and retrieved—the final presentation to the user is always localized according to the Client time zone. This allows for a more intuitive and user-friendly experience, ensuring accurate and expected time displays based on the individual user's location.