---
title: "Online Timer — Accurate & Full-Screen · ChronOtter"
description: "Measure sessions, record laps, and export results with a click using ChronOtter Timer."
canonical_url: "https://chronotter.com/timer"
meta:
  "og:description": "Measure sessions, record laps, and export results with a click using ChronOtter Timer."
  "og:title": "Timer — Precise timing with laps and splits"
---

Timer is stopped

00:00:00

No laps yet

**Timer Size**

Keyboard shortcuts:

`Space` : Start/Stop`R` : Reset`F` : Fullscreen

# **Timer — Precise timing with laps and splits**

Measure sessions, record laps, and export results with a click.

Tracking timed intervals? Try the [Countdown Timer](https://chronotter.com/countdown). Coordinating with teams? Check [World Clocks](https://chronotter.com/clocks). Need scheduled alerts? Use [Alarms](https://chronotter.com/alarms).

## **About & how to use**

Press Start to begin timing. Hit Lap to capture a split without stopping; Stop pauses; Reset clears the session and lap list. Each lap shows split (time since last lap) and total (time since start) so you can compare intervals at a glance. Keep the page open while you time for best reliability.

## **Tips**

- Keep the Timer tab visible/foreground for the smoothest timing.
- Use Lap to mark sections (e.g., song parts, work sprints) and compare splits later.
- Need a hard stop? Run a Countdown in another tab to alert you when to wrap up.

## **FAQ**

## Sitemap

See the full [sitemap](/sitemap.md) for all pages.