leap day
suomi-englanti sanakirjaleap day englannista suomeksi
karkauspäivä
Substantiivi
leap day englanniksi
An extra day intercalated into a year, especially the day intercalated into the Julian calendar every fourth year and into the Gregorian calendar every fourth year excepting centuries not divisible by 400, usually reckoned as February 29th.
(syn)
{{quote-text|en|year=1600|translator=Philemon Holland|author=Livy|title=The Romane Historie of T. Livius of Padua|section=Book XLV, Section xliv, 1232
1820 July, Thomas Yeates, "Catalogue of Ancient Eclipses" in https://books.google.com/books?id=-nU6AQAAMAAJ ''The Philosophical Magazine and Journal'', Vol. LVI, No. 267, OCLC 1641414, p. 18:
- The lunar cycle among the Chaldeans was called the ''saros'' and ''sara'', from סהרא, ''sahara'', the moon. This cycle it is said contained two hundred and twenty-three synodical months, or eighteen Julian years, ten days, when the same cycle or period contains five leap days, and eleven days when it contains four leap days, seven hours, forty-eight minutes, and one-fourth; in which time all the corresponding new and full moons and eclipses return again.
1852, Greswell|Edward Greswell, https://books.google.com/books?id=StxSAAAAcAAJ ''Fasti Temporis Catholici and Origines Kalendariae'', Vol. II, OCLC 457298519, p. 51:
- We observe then, with respect to the Julian cycle of leap-year, that, though we speak of it commonly as the cycle of the ''leap-year'', it is in reality only the cycle of the ''leap-day''. And this distinction is of much importance, especially to the present question. For the cycle of leap-year according to the Julian rule is one of four years, because the cycle of the leap-day in the Julian calendar is one of four also.
{{quote-text|en|year=2000|author=Morgan (mathematician)|Frank Morgan|title=The Math Chat Book|pageurl=https://books.google.com/books?id=GMLTGtV41qEC&pg=PA9|pages=9–10
{{quote-book|en|year=2002|translator=Josef Eisinger|author=Klaus Mainzer|title=The Little Book of Time|pageurl=https://books.google.com/books?id=wX111YnexSUC&pg=PA20|page=20