Free online time tools

Quick, free, no signup required.
Alarms, timers, countdowns & world clocks.

Set Alarm create an alarm
in seconds
Start Timer Countdown timer for
any task
World Clock Check time in any
city worldwide

Quick timer shortcuts

1 Minute timer
5 Minute timer
15 Minute timer
30 Minute timer
1 Hour timer

Popular Tools

Pomodoro Timer

Work in focused sprints,
take regular breaks.

Start focusing

Timezone Converter

Convert time between any timezones

Convert Timezone

Time Converter

Convert any duration into hours, days and more

Convert Time

Time Calculator

Add or subtract time from
any hour.

Calculate

100% free

All tools are completely free to use

No login required

No signup required. No downloads needed

Instant results

Get accurate results
instantly

Works everywhere

Works on desktop, tablet, and mobile devices

Use for:

  • Study sessions & Pomodoro technique
  • Cooking
  • Workouts & fitness
  • Reminders & daily Routines

Free Online Time Tools — No Download Required

AlarmO’Clock gives you everything you need to manage time, right in your browser. Set an alarm for any time of day, run a countdown timer, track focus sessions with Pomodoro, or check the current time in any city around the world — all for free, with no account or app required.

Whether you’re scheduling across time zones, staying focused at work, or just need a quick timer, AlarmO’Clock works instantly on any device. Open it, use it, done.