What is day?
A day is a unit of time equal to 24 hours, corresponding to one full rotation of the Earth. It is the primary unit for calendars, deadlines, event scheduling, and date-based calculations.
Real-world uses
Days are the fundamental unit for calendars, project deadlines, medication schedules, and billing cycles. Hospital stays, rental periods, and food expiration are counted in days. Astronomers use Julian days for continuous date numbering.
History
The day is one of the oldest natural time units, based on Earth's rotation. Ancient Egyptians were among the first to divide it into 24 hours. The seven-day week originates from Babylonian astronomy, linked to the seven visible celestial bodies.
Common mistakes
Assuming every day is exactly 24 hours. Due to daylight saving time transitions, a day can be 23 or 25 hours. Astronomers also distinguish between solar days and sidereal days (23 hours 56 minutes).
What is minute?
A minute is a unit of time equal to 60 seconds. It is universally used for scheduling, cooking, fitness tracking, and expressing short durations in everyday life.
Real-world uses
Minutes structure daily life through meeting schedules, cooking times, exercise intervals, and transportation timetables. Medical professionals measure heart rate in beats per minute and respiratory rate in breaths per minute.
History
The minute comes from the Latin "pars minuta prima" (first small part), referring to the first division of the hour into 60 parts. This sexagesimal division originated with the ancient Babylonians around 2000 BCE.
Common mistakes
Using "m" as an abbreviation for minutes, which conflicts with metres. The correct abbreviation is "min." Also, performing arithmetic on time without accounting for the base-60 system (e.g., 1.5 hours is 1 hour 30 minutes, not 1 hour 50 minutes).
When is this conversion used?
Converting day to minute is useful in the time domain when comparing values across different measurement standards or applying formulas that require a specific unit.
Worked examples
1 day = 1,440 minute
1 minute = 60 second
How to convert day to minute
To convert day to minute, multiply the value by 1,440.
To convert minute back to day, multiply by 0.00069444.
Measurement standards
The SI second is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the caesium-133 atom, maintained by the BIPM and national metrology institutes worldwide.
Did you know?
Earth's rotation is gradually slowing due to tidal friction with the Moon. To keep atomic time aligned with solar time, "leap seconds" have been inserted 27 times since 1972 — though they are scheduled to be abolished by 2035.
Quick reference: day to minute
| day | minute |
|---|---|
| 0.1 | 144 |
| 0.5 | 720 |
| 1 | 1,440 |
| 2 | 2,880 |
| 5 | 7,200 |
| 10 | 14,400 |
| 25 | 36,000 |
| 50 | 72,000 |
| 100 | 144,000 |
| 250 | 360,000 |
| 500 | 720,000 |
| 1,000 | 1,440,000 |
Common values
| day | minute | |
|---|---|---|
| Blink of an eye | 0.00000347 day | 0.005 minute |
| Average pop song | 0.00243056 day | 3.5 minute |
| Feature film | 0.08333333 day | 120 minute |
| One work day (8 hrs) | 0.33333333 day | 480 minute |
| One calendar year | 365 day | 525,600 minute |
Available Time units
More day conversions
- Convert day to second
- Convert day to minute
- Convert day to hour
- Convert day to week
- Convert day to year (365 d)
- Convert day to millisecond
- Convert day to microsecond
- Convert day to nanosecond
- Convert day to century (100 yr)
Assumption: year is defined as 365 days and century values are approximate.