It was Monday on 16 January 2023. What was the day on 12 January 2024?

16 January 2023 was a Monday.

To find the day on 12 January 2024, we need to calculate the number of days between these two dates.

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From 16 January 2023 to 16 January 2024 is exactly 1 year.

2023 is not a leap year (not divisible by 4), so it has 365 days.

$365 = 52 \times 7 + 1$

This means 365 days = 52 weeks + 1 day.

Therefore, 16 January 2024 falls 1 day after Monday, which is Tuesday.

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From 16 January 2024 to 12 January 2024 is 4 days backward.

Going back 4 days from Tuesday:

• Tuesday → Monday (1 day back)
• Monday → Sunday (2 days back)
• Sunday → Saturday (3 days back)
• Saturday → Friday (4 days back)

Therefore, 12 January 2024 was a Friday.

The correct answer is Option 3: Friday.