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Online Alarm Clock, Timer, Stopwatch and Time Tools

Set an alarm or start a timer, time laps on the stopwatch, check sunrise and sunset, tonight's moon phase or today's tides, and compare the time anywhere on the world clock.

Alarm Clock
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alarm-clock.orgHow it works

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Open to see the full screen bedside clock.

Timer
1 min5 min10 min15 min
Open Timer
Stopwatch
StartLap
Fastest00:03.86Slowest00:04.51Average00:04.15
LapLap timeTotal
  • Lap 300:04.5100:12.47
  • Lap 200:03.8600:07.96
  • Lap 100:04.1000:04.10
Open

Sunrise & Sunset

The cities below run north to south. The farther from the equator, the more day length swings with the season — long summer days, short winter ones.

Sun times near meSearch a city
Moon Phase Today
Waning gibbous 90% illuminated Next full moon in 26 days
Aug 192% Aug 285% Aug 377% Aug 467% Aug 556% Aug 645% Aug 734% Aug 823% Aug 914% Aug 107% Aug 112% Aug 120% Aug 131% Aug 144% Aug 1510% Aug 1617% Aug 1726% Aug 1835% Aug 1945% Aug 2054% Aug 2164% Aug 2272% Aug 2380% Aug 2487% Aug 2593% Aug 2697% Aug 27100% Aug 28100% Aug 2998% Aug 3094%
Moon times near meSearch a city
Tide Charts
Los Angeles, CA
024ft6a12p6p-0.1ft4.5ft1.9ft5.2ft
Today's high & low tides — open the live chart →
Boston, MA
0510ft6a12p6p10.2ft0.2ft9.5ft0.8ft
Today's high & low tides — open the live chart →
Seattle, WA
0510ft6a12p6p5.2ft9.4ft-0.2ft11.7ft
Today's high & low tides — open the live chart →
Tides near meSearch by city & state
World Clock
New York3:49 PM
Open
London8:49 PM
Open
Tokyo4:49 AM
Open
Sydney5:49 AM
Open
See every time zone →

Event countdowns

Live countdowns to birthdays, holidays, sports and the days you're waiting for.

Celebrity birthdaysHolidaysSportsWork weekEvent calendar
Browse all event countdowns →

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Guides: using the timer & stopwatch in a classroom · how these numbers are worked out · how it works · browser limitations · about this site.

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Every tool here is free, needs no sign-up, and gets better because people tell us what's missing. If you have an idea, we'd love to hear it.

Every suggestion is read and reviewed. We can't promise to act on them all, but they directly shape what we build next.

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