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WEEKDAY

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Returns the day of the week corresponding to a date. The day is given as an integer, ranging from 1 (Sunday) to 7 (Saturday), by default.

Syntax

WEEKDAY ( serial_number ,return_type)

Serial_number is a sequential number that represents the date of the day you are trying to find.

Return_type is a number that determines the type of return value.

Return_type

Number returned

1 or omitted

Numbers 1 (Sunday) through 7 (Saturday).

2

Numbers 1 (Monday) through 7 (Sunday).

3

Numbers 0 (Monday) through 6 (Sunday).

Remark

Dates are stored as sequential serial numbers so they can be used in calculations. By default, December 31, 1899 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,448 days after January 1, 1900.

Example

Formula

Description (Result)

=WEEKDAY("2/14/2008")

Day of the week, with numbers 1 (Sunday) through 7 (Saturday) (5)

=WEEKDAY("2/14/2008",2)

Day of the week, with numbers 1 (Monday) through 7 (Sunday) (4)

=WEEKDAY("2/14/2008",3)

Day of the week, with numbers 0 (Monday) through 6 (Sunday) (3)

Note: 2/14/2008 is a Thursday.

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