How Many Seconds Are in a Day?

• 60 seconds in a minute
• 60 minutes in an hour
• 24 hours in a day

So the math is: 60 × 60 × 24 = 86,400 seconds.

For quick reference, here are related time conversions:

• 1 hour = 3,600 seconds
• 1 week = 604,800 seconds
• 1 (365-day) year = 31,536,000 seconds

Note that this assumes a standard solar day. On rare occasions, a "leap second" is added to keep atomic clocks aligned with Earth's slightly irregular rotation, making that specific day 86,401 seconds long.

The closest sibling pages are How Many Seconds Are in a Year? and How Many Seconds Are in an Hour?.

See the Time & Dates topic for other answers in this topic, or start from Ask AI Questions.