SEARCH MATHEMATICA 8 DOCUMENTATION

THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.

Calendar Package >

Calendar Package Symbol

DayOfWeek

DayOfWeek[{year, month, day}]
gives the day of the week on which the given date {year, month, day} occurred.

DayOfWeek[{year, month, day, hour, minute, second}]
gives the day of the week for the given date.

To use DayOfWeek, you first need to load the Calendar Package using Needs["Calendar`"].

specifies which calendar system to use

The default calendar is the usual Western (American) calendar, but can be changed with the Calendar option.

Valid settings for Calendar are Automatic, Julian, Gregorian, Islamic, and Jewish.

Needs["Calendar`"]

The Declaration of Independence was signed on a Thursday:

Needs["Calendar`"]

The Bastille was stormed on a Tuesday:

Needs["Calendar`"]

Canada became an independent nation on a Monday:

Needs["Calendar`"]

Wolfram Research began on a Saturday:

Needs["Calendar`"]

This gives the day of the week at the time the formula was input:

Needs["Calendar`"]

Hours, minutes, and seconds do not affect the day of the week: