☰

Online Timer, Alarm Clock and Tide Charts

Free, no sign-up, and it all runs right in your browser — start a timer or set an alarm, time laps on the stopwatch, look up today's high and low tides straight from NOAA, or follow a countdown to the day you're waiting for.

Alarm Clock
--
--
alarm-clock.orgHow it works

Browser Limitations · Warnings

Add Alarm
?

Open to see the full screen bedside clock.

Timer
1 min5 min10 min15 min
Open Timer
Stopwatch
LapLap timeTotal
    Open · laps & CSV

    Sunrise & Sunset

    See My LocationSearch by City
    Tide Charts
    Los Angeles, CA
    0ft1ft2ft3ft4ft5ft6ft12a6a12p6p12a0.4ft1:45 AM3.3ft8:52 AM3.0ft12:06 PM5.4ft6:41 PM
    Today's high & low tides — open the live chart →
    Boston, MA
    0ft1ft2ft3ft4ft5ft6ft7ft8ft9ft10ft11ft12a6a12p6p12a1.4ft2:03 AM8.1ft8:18 AM2.2ft2:07 PM9.4ft8:28 PM
    Today's high & low tides — open the live chart →
    Seattle, WA
    -2ft-1ft0ft1ft2ft3ft4ft5ft6ft7ft8ft9ft10ft11ft12ft12a6a12p6p12a9.9ft12:37 AM0.1ft8:11 AM10.2ft4:41 PM8.0ft9:36 PM
    Today's high & low tides — open the live chart →
    Tides near meSearch by city & state
    Celebrity Birthday Countdowns
    Tom Bradyin 10d
    Barack Obamain 11d
    Roger Federerin 15d
    Jennifer Lawrencein 22d
    Bill Clintonin 26d
    Usain Boltin 28d
    Sporting Event Countdowns
    World Seriesin 88d
    Daytona 500in 205d
    The Mastersin 261d
    Boston Marathonin 269d
    Kentucky Derbyin 281d
    Indianapolis 500in 310d
    Political Countdowns
    Midterm Elections 2026in 102d
    Presidential Election 2028in 837d
    Inauguration Day 2029in 911d
    Important Work Countdowns
    Friday at 5:00 PM6d 20h
    Open
    Next Fed. Holiday44d 11h
    Open
    Next 3-Day Weekend42d 12h
    Open
    See all work countdowns →
    420 Countdown
    20:14:47
    Is it 4:20 yet?

    Can't find it? Suggest a birthday, holiday or event and we'll consider adding a countdown for it.

    💡 How do we make alarm-clock.org better? Share an idea →

    We want alarm-clock.org to be the best countdown, reminder, and event site online. If you have an idea to make it better, 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.

    Terms · Privacy · Suggest an event · Promote an event · Report abuse

    © 2026 alarm-clock.org. All rights reserved.

    Also on the site: About · Political · Shopping · Entertainment · Parties · Astronomy · Anniversaries · Graduations

    Event names and trademarks are the property of their respective owners. alarm-clock.org is not affiliated with or endorsed by any event, league, team, or rights holder.