[{"data":1,"prerenderedAt":121},["ShallowReactive",2],{"tool-content-en-stopwatch-timer":3},{"id":4,"title":5,"body":6,"description":111,"extension":112,"locale":113,"meta":114,"navigation":115,"path":116,"seo":117,"stem":118,"toolId":119,"__hash__":120},"tools\u002Ftools\u002Fen\u002Fstopwatch-timer.md","Stopwatch & Countdown Timer",{"type":7,"value":8,"toc":106},"minimark",[9,14,27,100,103],[10,11,13],"h2",{"id":12},"how-the-stopwatch-and-countdown-timer-work","How the stopwatch and countdown timer work",[15,16,17,18,22,23,26],"p",{},"Switch between ",[19,20,21],"strong",{},"Stopwatch"," and ",[19,24,25],{},"Countdown"," at the top; the timer resets when you change modes. The large reading is driven by a monotonic clock, so it stays accurate even after the tab was in the background.",[28,29,30,41,47,76,94],"ul",{},[31,32,33,36,37,40],"li",{},[19,34,35],{},"Stopwatch:"," press Start, then ",[19,38,39],{},"Lap"," for each split. Every row shows the split and the running total, and the fastest and slowest laps are badged.",[31,42,43,46],{},[19,44,45],{},"Countdown:"," pick a preset or type your own duration, then start. A short beep plays when it reaches zero.",[31,48,49,52,53,57,58,61,62,65,66,61,69,61,72,75],{},[19,50,51],{},"Custom duration:"," accepts plain seconds (",[54,55,56],"code",{},"90","), clock form (",[54,59,60],{},"1:30",", ",[54,63,64],{},"0:05:00",") and unit form (",[54,67,68],{},"5m",[54,70,71],{},"1h30m",[54,73,74],{},"1分30秒",").",[31,77,78,81,82,85,86,89,90,93],{},[19,79,80],{},"Keyboard:"," ",[54,83,84],{},"Space"," starts or pauses, ",[54,87,88],{},"L"," records a lap, ",[54,91,92],{},"R"," resets.",[31,95,96,99],{},[19,97,98],{},"Reminders:"," when a countdown reaches zero it beeps, flashes the tab title, and — if you allow notifications — sends a desktop alert that you can silence with one click.",[15,101,102],{},"Lap results can be copied as tab-separated text. The last mode and duration, and copied laps, are only stored on this device when \"remember tool data\" is enabled.",[15,104,105],{},"Everything runs locally — no account, no upload, and no network request while the timer runs.",{"title":107,"searchDepth":108,"depth":108,"links":109},"",2,[110],{"id":12,"depth":108,"text":13},"Run a precise stopwatch with lap splits, or a countdown timer with an alarm — all offline in your browser.","md","en",{},true,"\u002Ftools\u002Fen\u002Fstopwatch-timer",{"title":5,"description":111},"tools\u002Fen\u002Fstopwatch-timer","stopwatch-timer","ubE3hUYFSaLJyyk2HQmQuH_iZX_YiuNL-DvyViu7xW8",1792391420728]