Try the Fullscreen button in classrooms and meetings :-) Use this 5 Minute Full Screen? Set timer for 5 Minutes and use it to cook food, remember to call back, to take breaks, etc. This 5 minute timer is easy and simple online countdown timer clock with alarm. If you want to pause the timer, no problem, just press the "pause" button and if you want to continue, press the "resume" button. A cool little 5 Minutes Timer! Try the Fullscreen button in classrooms and meetings :-) Use this 5 Minutes Full Screen? They range from a 1 second timer - up to a year timer! It's pointless - but you asked for it! So it is actually 5 minute countdown.. Just press start the "start" button and this five minute timer will start. A cool little 5 Minute Timer! Simple to use, no settings, just click start for a countdown timer of 5 Minutes. Five Minute Timer with Alarm - OnlineClock.net offers this handy digital clock for everyone to use to time anything 5 minutes long. 5 minute timer. Here are some great pre-set timers ready to use. Best online countdown timer with buzzer. Simple to use, no settings, just click start for a countdown timer of 5 Minutes.