Perpetual calendar - virtual calendar | vp calendar, Calendar resources offering calendar comparisons, table of seasons, this day in history, and days between dates. other helpful resources include a detailed zodiac. When leap year? leap day? | , When is leap year? find out the next leap day, how to calculate leap years, leap year folklore, and more!. Definitions year | calendars, What is the solar cycle? in the julian calendar the relationship between the days of the week and the dates of the year is repeated in cycles of 28 years..
Year 2008 calendar - timeanddate., United states 2008 – calendar american holidays. yearly calendar showing months year 2008. calendars – online print friendly – year . http://www.timeanddate.com/calendar/?year=2008 Julian day - wikipedia, Julian day continuous count days beginning julian period primarily astronomers. julian day number (jdn) integer. https://en.wikipedia.org/wiki/Julian_day Leap year - wikipedia, A leap year ( intercalary year bissextile year) calendar year additional day (, case lunisolar calendars, month. https://en.wikipedia.org/wiki/Leap_year