Online clock-angle problem solver. Pick the hour and the hands' relationship (overlap or angle) to find the first time they coincide or form the angle—great for clock puzzles.
展开更多 ▾
Minutes=(30H ∓ angle)/5.5
On the hour 0-11
Overlap or angle
📖 Tutorial | Clock Problem
1. Definition
Clock problems study overlap and angles; a chase problem.
2. Formula & Notation
Minute
6°/min
Hour
0.5°/min
Gain
5.5°/min
3. Properties & Laws
Leads by 30H°;
Minutes=(30H∓angle)/5.5;
Smallest 0–60;
22 overlaps a day.
4. Steps
Enter h, choose relationship;
Click "Find Time";
Or click "Load Example".
5. Worked Examples
Example: first overlap after 3. Solution: about 3:16:22.
6. Common Pitfalls
Gain is 5.5, not 6; Two candidates, earliest; h 0–11.