How to time a puzzle or Rubik's cube solve

To time a puzzle or Rubik's cube solve, use a stopwatch and keep the start and finish method the same for every attempt. A browser stopwatch works for quick practice, whether you are solving a cube, finishing a jigsaw, or working through a logic puzzle.

For repeat attempts, mark each completed solve as a lap instead of trying to remember the time. That gives you a simple record to compare, while keeping in mind that a manually started stopwatch includes a little reaction time.

Time a solve step by step

1. Open the stopwatch. Use Timer & Stopwatch and choose its stopwatch. It runs in your browser, so you can start timing without installing an app.
2. Set up the puzzle first. Scramble the cube or arrange the puzzle, then put your hands and any pieces in the same starting position you plan to use for later attempts.
3. Start and solve. Start the stopwatch, then begin solving. Use the same start action each time. If you start the stopwatch just before moving, the measured time includes the small delay between your click or tap and your first move.
4. Mark the finish. Stop the stopwatch as soon as you consider the puzzle solved. Decide in advance what counts as finished, such as the cube being fully solved or the final jigsaw piece being placed.
5. Record repeated attempts. For a practice session, use the lap function after each solve. Keep the same puzzle type and timing routine so the times are more useful to compare.

If you are timing with a phone or touchscreen, make sure the stopwatch is easy to reach without knocking the puzzle or moving pieces. On a computer, place the window where you can click it quickly, but do not let rearranging windows become part of the solve.

Choose a timing method that fits your practice

Timing your own practice

Starting and stopping the stopwatch yourself is convenient. It also adds your reaction time at both ends: the delay before you begin after starting, and the delay before you stop after finishing. That means the result is best treated as a personal practice time, not a precise measurement of the puzzle alone.

To make your results more consistent, keep the device, screen position, and hand movements the same. Start the stopwatch, begin immediately, and stop it as soon as the agreed finish condition is met. A consistent routine matters more than trying to compensate for a fraction of a second by guessing.

Having someone else time you

A helper can start the stopwatch with a clear verbal cue and stop it when you finish. Agree on the cue and finish condition before the attempt. This avoids reaching for the screen while solving, although the helper's reaction time still affects the result.

Timing a group or a puzzle session

For several people, give everyone the same start signal and have one person record each finish. For a longer activity, the countdown timer can help set a fixed practice period, while the stopwatch is better for measuring one solve or marking separate attempts with laps.

If you are participating in an official event, follow the event's timing equipment and rules. A browser stopwatch is useful for casual practice, but it does not replace any required competition timer or procedure.

Compare attempts without misleading yourself

One quick solve may be a personal best, but it does not show what you can usually do. Compare several attempts made with similar scrambles, puzzle conditions, and timing methods. A single unusually fast or slow result can happen by chance, so look at the pattern across the session.

Use laps to keep attempts in one session, and avoid changing how you start or stop halfway through. If you pause the stopwatch, change devices, or forget to mark one attempt, note that beside the result rather than treating all times as directly comparable.

For a Rubik's cube, decide whether you are timing only the solve or also the time spent preparing and inspecting the scramble. For a jigsaw or other physical puzzle, decide whether sorting pieces counts. Use the same definition each time, or differences in what you include can matter more than the change in solving speed.

Problems you might hit

The stopwatch starts late

With manual timing, the stopwatch does not know when your hands move. Practice the same start routine, or ask a helper to give a clear start cue. Do not compare these results directly with times from a dedicated timer that starts automatically when hands are lifted.

You forget to stop or mark a lap

Keep the stopwatch visible and decide on the finish condition before beginning. If you miss a lap, do not estimate the time from memory. Mark the attempt as incomplete and continue with the next one.

You want to time a whole session

Use the countdown timer to set a practice block, and the stopwatch to track the individual attempts inside it. The countdown tells you when the session period ends; it is not a substitute for recording each solve time.

Keep timing sessions short enough that you can maintain your normal solving technique. A timer measures the attempt, but it cannot explain why one solve was faster. If a time changes, note whether the scramble, puzzle setup, or timing method changed too.