Score – time

Imperial (British)Traditional unit (still used in some regions)

Twenty years. Familiar from 'four score and seven years ago' (87 years) in the Gettysburg Address.

1 score = 631,139,040 seconds (exactly).

ValueFromTo

1 score = 631,139,040 seconds

About the score

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.

Sources: Wikipedia: Score (number); Wikipedia: Gettysburg Address

Score conversion chart

1 score expressed in every other time unit:

Unit	1 score
Seconds	631,139,040
Minutes	10,518,984
Hours	175,316.4
Days	7,304.85
Weeks	1,043.55
Months	240
Years	20
Milliseconds	631,139,040,000
Microseconds	631,139,040,000,000
Nanoseconds	6.3113904×10¹⁷
Decades	2
Centuries	0.2
Millennia	0.02
Picoseconds	6.3113904×10²⁰
Common Years	20.01328767
Leap Years	19.95860656
Julian Years	19.99958932
Tropical Years	20.00001698
Sidereal Years	19.99924092
Synodic Months	247.3655284
Sidereal Days	7,324.85002
Aeons	2×10⁻⁸
Shakes	6.3113904×10¹⁶
Fortnights	521.775
Lustra	4
Olympiads	5
Indictions	1.333333333
Jubilees	0.4
Ghati	438,291
Muhurtas	219,145.5
Prahar	58,438.8
Shichen	87,658.2
Moments	7,012,656
Ship's Watches	43,829.1
Kin (Maya)	7,304.85
Winals	365.2425
Tun (Maya)	20.29125
Katuns	1.0145625
Baktuns	0.050728125

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