ZeroTimer is a small countdown timer that enables you to maintain a list of countdown events that can be activated as needed. At the end of the countdown you can be notified via popup window or .wav sound alert, and you can also monitor the countdown progress from a dynamic tray icon that slowly changes color as the countdown progresses. ZeroTimer provides a customizable interface with 3 ready-to-use skins to choose from.

The license of this software is Freeware, you can free download and free use this time clock software.