hour hand — Definition, Formula & Examples
The hour hand is the shorter, thicker hand on an analog clock that points to the current hour. It completes one full rotation around the clock face every 12 hours.
The hour hand is the indicator on an analog clock that rotates 360° per 12-hour cycle, advancing 30° per hour (or 0.5° per minute), and designates the hour component of the displayed time.
How It Works
The hour hand moves slowly and steadily around the clock. It takes 12 hours to make one complete trip around the dial. Each number on the clock face represents one hour, and the spaces between numbers are spaced 30° apart. Between hours, the hour hand gradually shifts toward the next number, so its exact position can also help you estimate the minutes.
Worked Example
Problem: The hour hand is pointing directly at the 3 and the minute hand is pointing at the 12. What time is it?
Step 1: Look at where the short (hour) hand is pointing. It points at 3.
Step 2: Look at where the long (minute) hand is pointing. It points at 12, which means zero minutes past the hour.
Step 3: Combine the readings: the hour is 3 and the minutes are 00.
Answer: The time is 3:00.
Why It Matters
Reading an analog clock is a life skill tested in elementary math classes. Understanding how the hour hand moves also builds intuition about angles and fractions of a circle, concepts that appear again in geometry.
Common Mistakes
Mistake: Confusing the hour hand with the minute hand.
Correction: Remember that the hour hand is the shorter, thicker hand. The minute hand is longer and thinner. A helpful trick: the shorter hand has less ground to cover because hours change slowly.