Days Conversion

Calendars document the days in a month

The day is a unit used to measure time. Use one of the conversion calculators below to convert to another unit of measure, or read on to learn more about days.

Day Conversion Calculators

Choose a unit of time to convert to.

Convert days to centuries
1 day is equal to 2.7379E-5 centuries
Convert days to decades
1 day is equal to 0.000274 decades
Convert days to years
1 day is equal to 0.002738 years
Convert days to months
1 day is equal to 0.032855 months
Convert days to weeks
1 day is equal to 0.142857 weeks
Convert days to hours
1 day is equal to 24 hours
Convert days to minutes
1 day is equal to 1,440 minutes
Convert days to seconds
1 day is equal to 86,400 seconds
Convert days to milliseconds
1 day is equal to 86,400,000 milliseconds
Convert days to microseconds
1 day is equal to 86,400,000,000 microseconds
Convert days to nanoseconds
1 day is equal to 86,400,000,000,000 nanoseconds

Day Definition and Usage

One day is the time it takes for the Earth to complete a single rotation around its axis in relation to the Sun. There are 24 hours in a day.

The day is an SI accepted unit for time for use with the metric system. Days can be abbreviated as day, for example 1 day can be written as 1 day.

Days Measurement Conversion Table

Days and the equivalent time durations
days centuries decades years months weeks hours minutes seconds milliseconds microseconds nanoseconds
1 day 0.000027379 0.000274 0.002738 yr 0.032855 mo 0.142857 wk 24 hr 1,440 min 86,400 sec 86,400,000 ms 86,400,000,000 µs 86,400,000,000,000 ns
2 day 0.000054758 0.000548 0.005476 yr 0.06571 mo 0.285714 wk 48 hr 2,880 min 172,800 sec 172,800,000 ms 172,800,000,000 µs 172,800,000,000,000 ns
3 day 0.000082137 0.000821 0.008214 yr 0.098565 mo 0.428571 wk 72 hr 4,320 min 259,200 sec 259,200,000 ms 259,200,000,000 µs 259,200,000,000,000 ns
4 day 0.00011 0.001095 0.010952 yr 0.13142 mo 0.571429 wk 96 hr 5,760 min 345,600 sec 345,600,000 ms 345,600,000,000 µs 345,600,000,000,000 ns
5 day 0.000137 0.001369 0.01369 yr 0.164274 mo 0.714286 wk 120 hr 7,200 min 432,000 sec 432,000,000 ms 432,000,000,000 µs 432,000,000,000,000 ns
6 day 0.000164 0.001643 0.016427 yr 0.197129 mo 0.857143 wk 144 hr 8,640 min 518,400 sec 518,400,000 ms 518,400,000,000 µs 518,400,000,000,000 ns
7 day 0.000192 0.001917 0.019165 yr 0.229984 mo 1 wk 168 hr 10,080 min 604,800 sec 604,800,000 ms 604,800,000,000 µs 604,800,000,000,000 ns
8 day 0.000219 0.00219 0.021903 yr 0.262839 mo 1.142857 wk 192 hr 11,520 min 691,200 sec 691,200,000 ms 691,200,000,000 µs 691,200,000,000,000 ns
9 day 0.000246 0.002464 0.024641 yr 0.295694 mo 1.285714 wk 216 hr 12,960 min 777,600 sec 777,600,000 ms 777,600,000,000 µs 777,600,000,000,000 ns
10 day 0.000274 0.002738 0.027379 yr 0.328549 mo 1.428571 wk 240 hr 14,400 min 864,000 sec 864,000,000 ms 864,000,000,000 µs 864,000,000,000,000 ns
11 day 0.000301 0.003012 0.030117 yr 0.361404 mo 1.571429 wk 264 hr 15,840 min 950,400 sec 950,400,000 ms 950,400,000,000 µs 950,400,000,000,000 ns
12 day 0.000329 0.003285 0.032855 yr 0.394259 mo 1.714286 wk 288 hr 17,280 min 1,036,800 sec 1,036,800,000 ms 1,036,800,000,000 µs 1,036,800,000,000,000 ns
13 day 0.000356 0.003559 0.035593 yr 0.427113 mo 1.857143 wk 312 hr 18,720 min 1,123,200 sec 1,123,200,000 ms 1,123,200,000,000 µs 1,123,200,000,000,000 ns
14 day 0.000383 0.003833 0.038331 yr 0.459968 mo 2 wk 336 hr 20,160 min 1,209,600 sec 1,209,600,000 ms 1,209,600,000,000 µs 1,209,600,000,000,000 ns
15 day 0.000411 0.004107 0.041069 yr 0.492823 mo 2.142857 wk 360 hr 21,600 min 1,296,000 sec 1,296,000,000 ms 1,296,000,000,000 µs 1,296,000,000,000,000 ns
16 day 0.000438 0.004381 0.043807 yr 0.525678 mo 2.285714 wk 384 hr 23,040 min 1,382,400 sec 1,382,400,000 ms 1,382,400,000,000 µs 1,382,400,000,000,000 ns
17 day 0.000465 0.004654 0.046544 yr 0.558533 mo 2.428571 wk 408 hr 24,480 min 1,468,800 sec 1,468,800,000 ms 1,468,800,000,000 µs 1,468,800,000,000,000 ns
18 day 0.000493 0.004928 0.049282 yr 0.591388 mo 2.571429 wk 432 hr 25,920 min 1,555,200 sec 1,555,200,000 ms 1,555,200,000,000 µs 1,555,200,000,000,000 ns
19 day 0.00052 0.005202 0.05202 yr 0.624243 mo 2.714286 wk 456 hr 27,360 min 1,641,600 sec 1,641,600,000 ms 1,641,600,000,000 µs 1,641,600,000,000,000 ns
20 day 0.000548 0.005476 0.054758 yr 0.657098 mo 2.857143 wk 480 hr 28,800 min 1,728,000 sec 1,728,000,000 ms 1,728,000,000,000 µs 1,728,000,000,000,000 ns