If you need countdown timer software for Windows-based computer, this is the software you are looking for. Free Countdown Timer supports unlimited number of alarms so that you are not restricted to the number of timers you can have.
Free Countdown Timer can remind you about important events by playing your favorite music (you can set volume to a predefined level) and showing a notification message. Timers that you set will sound even if computer goes to sleep. You can set the time in hours, minutes, seconds and an alarm will ring the counter reaches zero; or you can set date and time and an alarm will ring the counter reaches this time.