Find last day of any month with this simple trick [formulas]
Here is a handy trick to calculate last day of any month.
Assuming y and m contain the year & month for which you want to find the last day’s date, write
That is right, you can use ZERO (0) as the day.
When you do this, Excel tells us the last day of previous month.
How to calculate last day if I have a date in that month:
Instead of year and month, if you know a date & you want to find what is the last date… then use:
How to calculate the last working day of a month?
If you just care about working days.. then use:
This will give us the last working day of a month.
Dealing with holidays:
Very simple. Pass on a list of holidays to WORKDAY as last parameter. Like this:
=WORKDAY(DATE(y,m+1,1), -1, F1:F20)
This assumes, F1:F20 has a list of holiday dates.
Dealing with different weekend types:
Not everyone observes Saturday & Sunday as weekend. For example, I do not work on Tuesdays. You might have Sunday thru Thursday work week. If so,
use WORKDAY.INTL function, like this:
=WORKDAY.INTL(DATE(y,m+1,1), -1, 7)
Weekend type 7 is for Friday & Saturday weekend.
How do you calculate last date of a month?
Do you use some other formula to do this? Please share your tip using comments.
Work with dates often?
If you work with dates, then spend some time reading these tips:
- Using Date & Time in Excel
- 42 useful Date & Time formulas
- How to calculate common holiday dates in Excel?
- How to calculate payroll dates?
- How to sort a bunch of birth dates by birthday?
- Check if two dates are in same month
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