Alarm clock, timer, and countdown with sound and desktop notification.
This extension is a lightweight alarm clock, timer and countdown. You can set multiple alarm times with optional alarm messages. You can choose among several different alarm sounds and desktop notification.
This extension has been optimized for lightweight, performance, and privacy. In contrast to many similar extensions, it uses no background resources (you can verify this with Chrome's built-in task manager) and no tracking software (Google Analytics, etc.).