[{"data":1,"prerenderedAt":86},["ShallowReactive",2],{"page:type=timer&slug=40-seconds&locale=en":3},{"locale":4,"alternates":5,"title":8,"description":9,"h1":10,"lead":11,"breadcrumbs":12,"sections":21,"faq":36,"related":49,"updated":80,"tool":81,"schema":83},"en",{"es":6,"en":7},"\u002Ftemporizador\u002F40-segundos","\u002Fen\u002Ftimer\u002F40-seconds","40 seconds timer ⏱ online with alarm","Free 40 seconds timer: press Start and an alarm rings when it ends. Full screen, several sounds and works offline.","40 seconds timer","40 seconds countdown with alarm.",[13,16,19],{"name":14,"path":15},"Home","\u002Fen",{"name":17,"path":18},"Timer","\u002Fen\u002Ftimer",{"name":20,"path":7},"40 seconds",[22,26,32],{"paragraphs":23},[24,25],"This timer is set to 40 seconds. That is 40,000 milliseconds. 90 timers like this fit in one hour and 2,160 in a day.","During 40 seconds a resting heart beats about 47 times and a person walks roughly 53 metres at an easy pace.",{"heading":27,"list":28},"What is a 40 seconds timer good for?",[29,30,31],"planks and isometric exercises","rest between gym sets","elevator-pitch style presentations",{"heading":33,"paragraphs":34},"How to use it",[35],"Press the space bar or the Start button. When it reaches zero your chosen sound plays; on the main timer page you can add and chain several timers for intervals. Sound and volume settings are saved in your browser.",[37,40,43,46],{"q":38,"a":39},"How many seconds is 40 seconds?","40 seconds equals 40 seconds.",{"q":41,"a":42},"How do I set a 40 seconds timer?","Press Start: the time is already set. You can pause it, reset it, change the sound or go full screen.",{"q":44,"a":45},"Will it ring if I switch tabs?","Yes. The timer keeps running in the background and rings when it ends as long as the page stays open; the tab title shows the time left.",{"q":47,"a":48},"Will my screen turn off?","In supported browsers the \"Keep the screen on\" option uses the Wake Lock API to prevent it.",[50,53,56,59,62,65,68,71,74,77],{"label":51,"path":52},"20 seconds timer","\u002Fen\u002Ftimer\u002F20-seconds",{"label":54,"path":55},"25 seconds timer","\u002Fen\u002Ftimer\u002F25-seconds",{"label":57,"path":58},"30 seconds timer","\u002Fen\u002Ftimer\u002F30-seconds",{"label":60,"path":61},"35 seconds timer","\u002Fen\u002Ftimer\u002F35-seconds",{"label":63,"path":64},"45 seconds timer","\u002Fen\u002Ftimer\u002F45-seconds",{"label":66,"path":67},"50 seconds timer","\u002Fen\u002Ftimer\u002F50-seconds",{"label":69,"path":70},"55 seconds timer","\u002Fen\u002Ftimer\u002F55-seconds",{"label":72,"path":73},"1 minute and 30 seconds timer","\u002Fen\u002Ftimer\u002F90-seconds",{"label":75,"path":76},"All timers","\u002Fen\u002Ftimer\u002Flist",{"label":78,"path":79},"Stopwatch","\u002Fen\u002Fstopwatch","2026-10-23T13:43:20.912Z",{"seconds":82},40,{"app":84},{"name":10,"category":85},"UtilitiesApplication",1792763000900]