Timers

Free timers, clocks and time tools from CalcNova. Every tool runs in your browser with big, easy-to-read digits — no sign-up, nothing to install.

Online Timer — Countdown timer, stopwatch with laps, Pomodoro and interval timers, plus a big digital clock with alarm, all in one place.

Countdown Timer — Set any countdown from 10 seconds to 99 hours, with a clear alarm and overtime counting after zero.

Stopwatch — Counts up with hundredths of a second, lap times, and a CSV download of your splits.

Pomodoro Timer — 25-minute focus sessions with short and long breaks — the classic Pomodoro pattern for study and work.

Interval Timer — Work and rest rounds for Tabata, HIIT, boxing and EMOM workouts, with a total-time readout.

Digital Clock & Alarm — A big digital clock with seconds and the full date, plus one alarm you can label.

Math Quiz — Timed arithmetic questions with instant answers, a score and a full review — great for classrooms and daily practice.

5 Minute Timer — A 5-minute countdown, already set — just press Start.

10 Minute Timer — A 10-minute countdown, already set — just press Start.

30 Minute Timer — A 30-minute countdown, already set — just press Start.

1 Hour Timer — A 1-hour countdown, already set — just press Start.

20 Second Timer — A 20-second countdown, already set — just press Start.

1 Minute Timer — A 1-minute countdown, already set — just press Start.

2 Minute Timer — A 2-minute countdown, already set — just press Start.

20 Minute Timer — A 20-minute countdown, already set — just press Start.

25 Minute Timer — A 25-minute countdown, already set — just press Start. Exactly one full Pomodoro focus session.

More time tools are on the way: a race timer, a classroom timer, an exam timer, a tally counter, a random name picker, a random number generator and more. They will be added here as they are built.