[{"data":1,"prerenderedAt":31},["ShallowReactive",2],{"content-interval-timer-en":3},{"about":4,"steps":7,"faq":12},[5,6],"Interval training alternates work and recovery at fixed times – HIIT, Tabata, circuit training, running intervals or boxing rounds. This interval timer does the timekeeping for you: set the interval length, the rest length and the number of intervals, press start and focus on your workout.","Every phase change has its own sound: a high tone when an interval starts, a low tone when a rest begins and a sequence of beeps at the end. In addition, a warning tone can play any number of seconds before each interval ends, so you know you are almost through – optionally as a countdown with one beep every second until the interval ends. The timer runs entirely in your browser, with no app and no sign-up.",[8,9,10,11],"Pick a preset (Tabata, HIIT, EMOM, boxing) or set the length of an interval and of the rest in minutes and seconds yourself.","Choose the number of intervals and how many seconds before the end of each interval the warning tone should play (0 turns it off). Turn on “Warning as a countdown” to hear every remaining second, and optionally the warning before the end of each rest as well.","Start with “Start” or the space bar. The get-ready time (10 seconds by default) runs first so you can get into position. The same key pauses and resumes.","The ring and the dots show which phase and interval you are in. Bookmark the page to reuse your settings.",[13,16,19,22,25,28],{"q":14,"a":15},"How do I set up a Tabata timer?","Classic Tabata consists of 8 intervals of 20 seconds of work and 10 seconds of rest, 4 minutes in total. Set Interval to 0 min 20 s, Rest to 0 min 10 s and Intervals to 8 – or simply pick the “Tabata” preset.",{"q":17,"a":18},"Is there a rest after the last interval?","No. Rests only sit between two intervals. After the last interval the final sound plays right away. If you set the rest to 0, the intervals follow each other without a break.",{"q":20,"a":21},"Does the timer work in the background?","Yes. All sounds are scheduled in advance when you press start and run on the browser’s audio clock, so they play on time even when the tab is in the background. Keep the tab open. On smartphones, however, the system may pause the browser while the screen is locked.",{"q":23,"a":24},"Why do I not hear any sound?","Check that the sound toggle is on and your device is not muted. Browsers only allow sound after you interact with the page – clicking “Start” takes care of that. On iPhone and iPad, the timer plays its sounds as media sound by default, so they are audible even in silent mode. Since this can pause music from other apps, you can switch off “Play as media sound” – then the silent switch applies again.",{"q":26,"a":27},"Will my phone screen turn off during the workout?","No – while the timer runs it keeps the screen on using the browser’s wake lock feature, in current versions of Chrome, Edge and Safari. It releases the lock when you pause or finish. In battery saver mode the device may refuse the request.",{"q":29,"a":30},"Can I change the settings during a workout?","While the timer is running or paused, the settings are locked so that the schedule and the sounds stay in sync. Reset the timer to change them. For a simple countdown or a stopwatch with lap times, use the [[online-timer]].",1793129271230]