You can see the recent activities of your friends via the Friends app, or to see the activity time at any time, use the Activity app. Activity is an app that can be snapped and will allow you to see the recent activity of your friends and favorites. To launch the Activity app, you can say “Xbox, snap activity.” Or, you can follow these steps using your Xbox controller:
Press the Xbox button to return to Home.
Select the Snap icon to the right of the big app tile.
Select the Activity app.
Highlight Feed, then press A.
The activity of your friends will now be displayed in Snap mode.