Set Clock Hand Angle
List every 12-hour clock time whose hour and minute hands make a given angle. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Set Clock Hand Angle
- 1. Enter an angle in degrees. Type the angle, from 0 to 360 degrees, that you want the hour and minute hands to form on a 12-hour analog clock face.
- 2. Read how the calculation works. The tool checks every moment across 12 hours and finds each one where the hands are separated by exactly that angle, since the angle repeats roughly twice per hour.
- 3. Copy the matching times. Copy the full list of times, such as every moment the hands form a right angle, from the output pane and use it for a puzzle, worksheet or reference.
When to use Set Clock Hand Angle
Set Clock Hand Angle finds every clock time where the hour and minute hands form a specific angle, solving the classic clock-hands problem in reverse. It is for anyone who needs the exact times rather than working through the angular speed math themselves.
- Solving a math homework problem about clock hands. A classic problem asks for every time the hour and minute hands form a right angle within 12 hours. Enter 90 degrees to get the full list and check the worked answer.
- Designing a clock-based puzzle for an escape room. An escape room clue depends on a clock's hands forming a specific angle at the moment a player needs to notice it. Find every matching time to pick one that fits the scene.
- Verifying an analog clock rendering library. A custom clock-drawing component needs testing to confirm the hands land at the correct angle at specific times. Generate the reference times for a chosen angle and compare against the rendered output.
- Answering a trivia question about clock hand overlaps. A trivia round asks how many times a day the clock hands point in exactly opposite directions. Enter 180 degrees to get the full list of matching times as the answer.
Examples
Right angle
Input
90
Output
00:16:22, 00:49:05, 01:21:49, 01:54:33, 02:27:16, 03:00:00, 03:32:44, 04:05:27, 04:38:11, 05:10:55, 05:43:38, 06:16:22, 06:49:05, 07:21:49, 07:54:33, 08:27:16, 09:00:00, 09:32:44, 10:05:27, 10:38:11, 11:10:55, 11:43:38
About the Set Clock Hand Angle tool
Set Clock Hand Angle runs as plain JavaScript in your browser tab, with no server behind it. List every 12-hour clock time whose hour and minute hands make a given angle. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Time Tools section, 90 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
There is nothing to configure. Provide the input and the result appears on its own. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Set Clock Hand Angle cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.