Day of Week Calculator

Calculates the day of the week from date.

Day of Week
Date

The Gregorian calendar is used for dates on and after October 15, 1582 A.D. and the Julian calendar is used before October 4, 1582.
    Day of Week
    [1-6] /6Disp-Num
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    [1]  2018/11/09 05:12   Male / 60 years old level or over / A retired person / Useful /
    Purpose of use
    General interest and curiosity
    Bug report
    In Microsoft, this formula:
    =TEXT("1/1/1900","dddd")
    gives Sunday

    but this web site gives Monday.

    One or other is wrong, unless it's me.
    from Keisan
    There are bugs in Excel concerning dates.
    The correct answer is 'Monday'.
    https://en.wikipedia.org/wiki/January_1900
    https://www.journalofaccountancy.com/issues/2015/aug/excel-date-formatting.html
    [2]  2018/11/08 06:32   Female / 50 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    Problem solving, handling difficult people, customer service
    [3]  2018/07/30 15:23   Female / 60 years old level or over / A retired people / Useful /
    Purpose of use
    to calculate Biblical things.
    Comment/Request
    My main question has to do with time in other places (eg. Jerusalem). Is your calculator set up to use different places in calculations?
    [4]  2018/03/15 21:10   Male / 50 years old level / A retired people / Very /
    Purpose of use
    Very useful To calculate the dates of events happened in the remote past
    [5]  2017/12/04 13:42   Male / Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    Homework and for fun facts
    Comment/Request
    This is pretty cool
    [6]  2009/07/31 20:52   Male / 50 level / An office worker / Very /
    Purpose of use
    getting acquainted with it
    Comment/Request
    very good

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