Online Alarm Clock, Timer, Stopwatch and Time Tools
Free, no sign-up, and it all runs right in your browser — set an alarm or start a timer, time laps on the stopwatch, check sunrise and sunset, tonight's moon phase or today's high and low tides straight from NOAA, compare the time anywhere on the world clock, or follow a countdown to the day you're waiting for.
Open to see the full screen bedside clock.
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.
Event countdowns
Live countdowns to birthdays, holidays, sports and the days you're waiting for.
Can't find it? Suggest a birthday, holiday or event and we'll consider adding a countdown for it.
How the times are worked out, and what a browser alarm can and can't do: how it works · browser limitations · about this site.