MathMediumMarch 9, 2026

How many seconds are in a day?

A medium math & estimation questions prompt from the quest1on archive. Try it first, then compare your answer with the explanation and related questions below.

seconds

Explanation

24 hours × 60 minutes × 60 seconds = 86,400 seconds. This number is why Unix timestamps count from January 1, 1970.

Did you know?

24 hours × 60 minutes × 60 seconds = 86,400 seconds. This number is why Unix timestamps count from January 1, 1970.

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