How Many Seconds Are in an Hour?

• 60 seconds in a minute × 60 minutes in an hour = 3,600 seconds

Here's how that scales up to other units of time:

• 1 minute = 60 seconds
• 1 hour = 3,600 seconds
• 1 day = 86,400 seconds
• 1 week = 604,800 seconds

This number comes from the ancient Babylonians, who used a base-60 (sexagesimal) counting system. That's why we still divide hours and minutes into 60 parts today, rather than into tens like the metric system.

The closest sibling pages are How Many Weeks Are in a Year? and How Old Is Ash Trevino?.

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