00:00:21
H M S

Most popular timers

10 minutes3 minutes2 hoursan hour and 15 minutes5 minutesan hour50 minutes11 minutesan hour and a half6 hoursan hour and 30 minutes9 hours2 minutes35 minuteshalf an hour8 hours1 hour and 15 minutes6 minutes

Wake me up in 21 seconds

Wake me up in 21 seconds. Set timer for 21 seconds. Set the alarm for 21 seconds from now. It is a free and easy-to-use countdown timer.

Set this 21 seconds timer and let the countdown start. Use it to control the time limit of any activity and be notified when that limit has been reached. When the countdown stops, an alarm sound will ring.

Start 21 seconds timer.

Set an timer for the specified time

67 seconds24 minutes 20 seconds6 hours 59 minutes83 seconds15 hours 5 minutes7 minutes 40 seconds24 hours 53 minutes17 minutes 45 seconds5 hours 33 minutes16 hours 49 minutes13 hours 33 minutes13 hours 12 minutes15 hours 49 minutes11 hours 45 minutes17 hours 54 minutes19 minutes 40 seconds9 hours 21 minutes4 minutes