Tymuz is a quick and easy way to set timers for whatever reason (cooking, quizzes, going out, turn off the bath water etc!).
Create as many timers as you want!
Double click on a timer to start it. When a timer ends, it's alarm will sound and according to your preferences the app will come into the foreground and/or a notification will be displayed on screen.
You can 'hide' the app window by 'closing' it and display it again by clicking on the dock icon.
The app comes with PDF help (which you can view from the app's Help menu) which describes everything in more details.