How many minutes is 24 hours?
1,440 minutes
24 hours = 1,440 minutes — 1 day on a clock.
minutes
1,440min
24 hr = 1,440 min
Quick pairs
How 24 hours converts to minutes
Every time conversion goes through the second, which is the SI base unit for time. 24 hours is 86,400 seconds, and dividing that by the length of one minute gives the answer.
1 hour = 60 minutes 24 × 60 = 1,440
Written as a clock reading rather than a decimal, that is 1 day. The decimal form is what a form field or a spreadsheet wants; the clock form is what a schedule wants, and the two are not interchangeable.
Where 24 hours shows up
The civil day holds 1,440 minutes, but the Earth does not take that long to turn. A sidereal day — one full rotation relative to the fixed stars — runs about 23 hours 56 minutes 4 seconds, roughly 1,436 minutes, and the missing four are the extra rotation needed to face the Sun again after a day of orbital travel. That four-minute gap is why a given star rises about four minutes earlier each night and why the night sky drifts through the seasons.
24 hours in every time unit
The same span, converted once into each unit the tool supports. The last two rows use the Gregorian average.
| Unit | Amount | Basis |
|---|---|---|
| milliseconds | 86,400,000 | Exact definition |
| seconds | 86,400 | Exact definition |
| minutes | 1,440 | Exact definition |
| hours | 24 | Exact definition |
| days | 1 | Exact definition |
| weeks | 0.1429 | Exact definition |
| months | 0.03285 | Gregorian average |
| years | 0.002738 | Gregorian average |
Frequently asked questions
How many minutes is 24 hours?
24 hours = 1,440 minutes. 1 hour = 60 minutes, so the conversion is 24 × 60 = 1,440. That is exact arithmetic — both units have a fixed definition, so there is no rounding beyond the digits shown.
How long is 24 hours on a clock?
1 day. That is the same span written out in whole units instead of a decimal, which is usually what you want when you are setting a timer or reading a schedule rather than filling in a form.
Is this conversion exact?
Yes. Seconds, minutes, hours, days, and weeks all have fixed definitions — 60 seconds to the minute, 60 minutes to the hour, 24 hours to the day, 7 days to the week. Nothing in this conversion touches a month or a year, so no averaging is involved and the only rounding is in the digits displayed.
What is 24 hours in practice?
The civil day holds 1,440 minutes, but the Earth does not take that long to turn. A sidereal day — one full rotation relative to the fixed stars — runs about 23 hours 56 minutes 4 seconds, roughly 1,436 minutes, and the missing four are the extra rotation needed to face the Sun again after a day of orbital travel. That four-minute gap is why a given star rises about four minutes earlier each night and why the night sky drifts through the seasons.
Related time conversions
Any value, any two units
Time Converter
Convert between milliseconds, seconds, minutes, hours, days, weeks, months, and years — plus the full index of instant-answer pages like this one.
Open the time converter →