Score to Years (score to yr)
1 score equals 20 years exactly.
How to convert score to years
To convert score to years, multiply the number of score by 20. This factor is exact. To go the other way, multiply years by 0.05.
years = score × 20
Example: 10 score = 200 years.
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
Year (yr)
The average Gregorian calendar year of 365.2425 days (31,556,952 seconds). A common year has 365 days and a leap year 366.
A year is the Earth's trip around the Sun, but there are several versions. The tropical year, which tracks the seasons, is about 365.2422 days. The sidereal year, measured against the stars, is about 365.2564 days, roughly 20 minutes longer, because the Earth's axis precesses. Calendars must squeeze these into whole days, which is the origin of leap years. English year descends from Old English gear, while Latin annus, the source of annual, comes from a different root.
The Gregorian calendar, introduced by Pope Gregory XIII's bull of 24 February 1582, fixed the problem of Julian drift that had moved the March equinox away from 21 March and upset the date of Easter. Ten days were skipped, so Thursday 4 October was followed by Friday 15 October. Its rule of skipping leap days in century years not divisible by 400 gives a mean year of 365.2425 days, the value this site uses for the year. Britain and its empire switched in 1752 and Russia in 1918. Scientists write the year as a, with the Julian year fixed at 31,557,600 seconds.
1 year = 31,556,952 seconds (exactly).
Sources: Wikipedia: Year; Wikipedia: Gregorian calendar
Related conversions
- Years to score (reverse)
- Score to seconds
- Score to minutes
- Score to hours
- Score to days
- Score to weeks
- Score to months
- Seconds to years
- Minutes to years
- Hours to years
- Days to years
- Weeks to years
- Months to years
- Milliseconds to years
- Microseconds to years
- Nanoseconds to years
- Decades to years
- Centuries to years
- Millennia to years
See all time units.