Score to Days (score to d)
1 score equals 7,304.85 days exactly.
How to convert score to days
To convert score to days, multiply the number of score by 7,304.85. This factor is exact. To go the other way, multiply days by 0.0001368953503 (rounded).
days = score × 7,304.85
Example: 10 score = 73,048.5 days.
Months and years are not constant. This site uses the average Gregorian year of 365.2425 days, so one 'year' converts to 365.2425 days, not 365; use 'common year' for exactly 365 days.
About these units
Score (score)
Twenty years. Familiar from 'four score and seven years ago' (87 years) in the Gettysburg Address.
Score meant a notch cut on a tally stick. The word is related to Old Norse skor, and because people often counted in twenties, every twentieth notch was cut larger, so the word came to mean twenty. As a unit of time, a score of years is 20 years, about 631 million seconds on the Gregorian calendar.
The best known use is the opening of the Gettysburg Address, delivered on 19 November 1863, where Lincoln spoke of four score and seven years ago. That is 87 years, which counted back from 1863 reaches 1776 and the Declaration of Independence. Wikipedia notes that the word also appears loosely as scores of, meaning a large unspecified number. A score is two decades, and five scores make a century.
1 score = 631,139,040 seconds (exactly).
Sources: Wikipedia: Score (number); Wikipedia: Gettysburg Address
Day (d)
24 hours or 86,400 seconds. The mean solar day; the actual rotation of the Earth is about 4 minutes shorter (see sidereal day).
Old English dæg is the root of our day, with close cousins in German Tag, Dutch dag and Icelandic dagur, all descending from Proto-Germanic dagaz. It is the oldest unit here, because the cycle of light and dark needs no instrument. Yet the day we count is a constructed average: the actual interval from one noon to the next varies through the year by up to about 7.9 seconds, because Earth's orbit is elliptical and its axis is tilted.
Astronomers smooth this out with a fictitious mean Sun, giving the mean solar day, and the day in the SI sense is fixed at exactly 86,400 seconds. Reality has drifted slightly: the mean solar day has recently averaged about 86,400.002 seconds, and tidal drag from the Moon is lengthening it by about 2 milliseconds per century. That is why 27 leap seconds were added to UTC between 1972 and 2022. One rotation measured against the distant stars is shorter, about 23 hours 56 minutes 4.09 seconds, and a year contains one more of these sidereal days than solar days.
1 day = 86,400 seconds (exactly).
Sources: Wikipedia: Day; BIPM: SI Brochure, 9th edition
Related conversions
- Days to score (reverse)
- Score to seconds
- Score to minutes
- Score to hours
- Score to weeks
- Score to months
- Score to years
- Seconds to days
- Minutes to days
- Hours to days
- Weeks to days
- Months to days
- Years to days
- Milliseconds to days
- Microseconds to days
- Nanoseconds to days
- Decades to days
- Centuries to days
- Millennia to days
See all time units.