Yes!  You can extend the time the mobile key expires on the day of check-out in OpenKey HOST.

1. Log into OpenKey HOST (

2. On the GUEST tab, locate the guest you wish to update and click on the ROOM NUMBER.

3. Click the blue pencil icon to edit the session.

4. The Session details will appear. To adjust the check-out time, click the calendar icon. Click the clock icon to adjust the appropriate check-out time. Once the time is expanded, you can adjust the expiration time by clicking on the arrows.

6. Once you have the correct time selected, simply click anywhere outside the calendar to close it.  Then click Update Session.

At this point the Status of the key will change to "Pending Key Server Request" until the guest downloads the updated key.