Educational time-telling worksheet for kids featuring a clock and o'clock phrases.

Let me work through this problem step by step.

Looking at the clock on the left side:
- The hour hand (shorter hand) is pointing at 1
- The minute hand (longer hand) is pointing at 12

When the minute hand is at 12, it means it's exactly on the hour (o'clock).
When the hour hand is at 1, it means it's 1 o'clock.

So the time shown is 1:00 or "one o'clock".

Now I need to match this with the correct answer from the options on the right:
- one o'clock ✓
- two o'clock
- three o'clock
- four o'clock

The correct match is "one o'clock" because the clock shows 1:00.

Final Answer:
one o'clock