Time — Clock & Calendar • Topic 1 of 6

Reading Clock

An analog clock carries three hands, and telling them apart is the first hurdle. The hour hand is the short, thick one; it crawls round, taking a full 12 hours for one circuit, which works out to 30 degrees an hour or just 0.5 degrees a minute. The minute hand is longer and thinner and completes a circuit every 60 minutes, moving 6 degrees a minute — the gap between any two numbers on the dial is 5 minutes, or 30 degrees. The second hand is the thinnest and fastest, sweeping the whole face in 60 seconds. To read the time, look at the minute hand for the exact minutes past the hour and the hour hand for the hour itself, but remember the hour hand drifts forward as the minutes pass: at 3:30 it sits halfway between 3 and 4, not on the 3. Everyday phrasing leans on quarters — the minute hand at 3 is 'quarter past' (15 minutes past), at 6 it is 'half past' (30 minutes past), and at 9 it is 'quarter to' the next hour, so 'quarter to 5' means 4:45. The day itself splits into two 12-hour halves: a.m. (ante meridiem) runs from midnight up to noon, p.m. (post meridiem) from noon up to midnight. The classic child error is misreading the hour when the minute hand has gone past 6 — calling 7:50 '8:50' because the hour hand is already creeping toward 8.

✅ Solved examples

1. The minute hand of a clock points to 9 and the hour hand is just past 4. What is the time, and how would you say it in words?
The minute hand on 9 means 45 minutes past the hour, so the time is 4:45. In words this is 'quarter to 5', because the minute hand at 9 is 15 minutes short of the next hour.
2. How many degrees does the minute hand turn in 20 minutes?
The minute hand moves 6 degrees every minute (360 deg / 60 min). In 20 minutes it turns 20 x 6 = 120 degrees.
3. At 6:00 exactly, what is the angle between the hour hand and the minute hand?
At 6:00 the minute hand is on 12 and the hour hand is on 6 — directly opposite. The angle is 180 degrees (6 number-gaps x 30 deg).
4. A child reads the clock showing 7:50 as '8:50'. Why does this mistake happen, and what should a teacher emphasise?
At 7:50 the hour hand has almost reached 8, so the child reads the nearer number. The teacher should stress that the hour is the number the short hand has last passed, not the one it is approaching, and that the hour hand moves gradually rather than jumping.

✏️ Practice — try these, take hints as needed

1. It is 'half past 8' in the morning. Write this in digital form with a.m. or p.m.
Half past = 30 minutes after the hour.
Morning means before noon.
8:30 a.m.
2. Through how many degrees does the hour hand move in 2 hours?
The hour hand turns 30 degrees each hour.
Multiply by 2.
60 degrees
3. The minute hand points to 6 and the hour hand lies midway between 10 and 11. What is the time?
Minute hand on 6 = 30 minutes past.
Hour hand between 10 and 11 means the hour is 10.
10:30
4. Which single hand of a clock completes a full circle in exactly one minute?
It is the thinnest and fastest hand.
60 seconds = one circuit.
The second hand

📝 Topic test — 8 questions

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