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# Set opening hours on Doorbell

A doorbell can either work around the clock, or only certain hours during the day. That means if someone scans the QR-code outside this time, they will not be able to call the users

Practical if you don't want residents or tenants to be called up in the middle of the night. Note that this limits the whole Doorbell. If you want some users/tenants to be whitelisted, you need to upgrade your Doorbell. Contact sales at our website: www.unloc.app

1. To set opening hours, you first have to go into the Doorbell you want to adjust
2. Click the Tooth Wheel(top right corner), and then click "Set opening hours"
3. Tick off the box, and select your preferred time slots. In the example below, we are setting the Doorbell to only operate for guests between midnight and 03.00
4. Finish by clicking save. You have now updated your opening hours.


![](https://storage.crisp.chat/users/helpdesk/website/a4f3bb8f4a123800/setopeninghours_b5kcf1.gif)