I can’t set alarm clock application is not working

Hello I had the same problem , but now I read a helpful reply from a user who had the same problem .... you have to go change the region in the settings to the closest time zone ... I changed it to Egypt since am in Beirut

Have you tried closing the app completely and rebooting?

If that doesn't work, try deleting it and reinstalling - you can download it again from the App Store.