The wrong unit conversion among the following is

Options

A. 1 day - 24 hours
B. 1 year - 12 months
C. 1 week - 7 days
D. 1 hour - 60 seconds

Explanation

To determine the wrong unit conversion among the given options, we will analyze each statement one by one.

1. **1 day equals to 24 hours**:
- This statement is correct. A day is indeed made up of 24 hours.

2. **1 year equals to 12 months**:
- This statement is also correct. A year consists of 12 months.

3. **1 week equals to 7 days**:
- This statement is correct as well. A week is made up of 7 days.

4. **1 hour equals to 60 seconds**:
- This statement is incorrect. The correct conversion is that 1 hour equals 60 minutes, and 1 minute equals 60 seconds. Therefore, 1 hour equals 60 minutes × 60 seconds/minute = 3600 seconds.

Based on the analysis above, the wrong unit conversion is:

**1 hour equals to 60 seconds.**

### Step-by-Step Solution:
1. **Analyze the first statement**: Confirm that 1 day = 24 hours is correct.
2. **Analyze the second statement**: Confirm that 1 year = 12 months is correct.
3. **Analyze the third statement**: Confirm that 1 week = 7 days is correct.
4. **Analyze the fourth statement**: Identify the mistake in the conversion of 1 hour. Recognize that it should equal 60 minutes, not 60 seconds.

### Final Conclusion:
The wrong unit conversion is **1 hour equals to 60 seconds**.