Excel Unplugged

Formula to get the start or end of the week date


On many occasions and in many dashboards, time will be the main factor of your analysis and reports. As far as time goes, you can do a Yearly, Quarterly, Monthly, Weekly or daily reports. For each and every one of those except for the Weekly reports, the dates are known and can be calculated or manually inserted. But for the Weekly reports, you need the boundaries of the week. So the first and the last day of the week. Now the formula is not quite straight forward as one might assume. Whereas there is a formula for the week number there is no built in formula for calculating the start and the end date of the week. But that doesn’t stop you from writing your own. For calculating the start and end dates of the current week, this is the formula.


Formula to get the start or end of the week date

Be aware of the WEEKDAY function. If so required, add the second argument. By default this formula will return the last Sunday. If in your region week starts on Monday, change the formula to


If one wishes to take this to the last or next week, a simple addition of 7 or a desired multiple of seven will do. Also for the last day of the week use


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