Gregorian Calendar - Week

Week

In conjunction with the system of months there is a system of weeks. A physical or electronic calendar provides conversion from a given date to the weekday, and shows multiple dates for a given weekday and month. Calculating the day of the week is not very simple, because of the irregularities in the Gregorian system. When the Gregorian calendar was adopted by each country (but not Alaska), the weekly cycle continued uninterrupted. For example, in the case of the few countries that adopted the reformed calendar on the date proposed by Gregory XIII for the calendar's adoption, Friday, 15 October 1582, the preceding date was Thursday, 4 October 1582 (Julian calendar).

Opinions vary about the numbering of the days of the week. ISO 8601, in common use worldwide, starts with Monday=1; printed monthly calendar grids list Mondays in the first (left) column of dates and Sundays in the last. Software often starts with Sunday=0. In the United States, it's generally the case that Sunday=1, with Sundays shown in the left column of a monthly calendar page.

Read more about this topic:  Gregorian Calendar

Famous quotes containing the word week:

    The press, that goiter of the world, swells up with the desire for conquest and bursts with the achievements which every day brings. A week has room for the boldest climax of the human drive for expansion.
    Karl Kraus (1874–1936)

    Next week Reagan will probably announce that American scientists have discovered that the entire U.S. agricultural surplus can be compacted into a giant tomato one thousand miles across, which will be suspended above the Kremlin from a cluster of U.S. satellites flying in geosynchronous orbit. At the first sign of trouble the satellites will drop the tomato on the Kremlin, drowning the fractious Muscovites in ketchup.
    Alexander Cockburn (b. 1941)

    [When asked: “If women voted, would they not have to sit on juries?”:] Many women would be glad of a chance to sit on anything. There are women who stand up and wash six days in the week at 75 cents a day who would like to take a vacation and sit on a jury at $1.50.
    Anna Howard Shaw (1847–1919)