BeginnerDate & Time
Find month-end due dates with EOMONTH
Set a due date to the last day of the following month, whatever its length.
EOMONTH
5 min15 points
EOMONTH practice exercises
Returns the last day of the month a given number of months from a date. Below is 1 interactive exercise that puts it to work on realistic business data — you write the formula, and get told exactly what went wrong when it does not work.
Syntax
EOMONTH(start_date, months)
Need a refresher? Learn EOMONTH — syntax, a worked example and where it goes wrong.
Practise EOMONTH
Ordered from most approachable to hardest.
When EOMONTH is the right tool
Returns the last day of the month a given number of months from a date. It belongs to the date & time family, and it shows up constantly in real work — which is why it is worth being genuinely fluent rather than merely familiar.
Before this one, it helps to be comfortable with DATE. The exercises below assume that ground is covered.
Reading about a function is not the same as being able to write it. The exercises on this page exist because the gap between recognising EOMONTH and producing it from memory, correctly, on data you have not seen before, only closes by doing it.
Related functions
Questions about EOMONTH
How do I practise EOMONTH without Excel installed?
Every exercise on this page runs in your browser. You type the EOMONTH formula into a real spreadsheet grid and get told immediately whether it works — no download, no account.
What does EOMONTH do?
Returns the last day of the month a given number of months from a date. The syntax is EOMONTH(start_date, months). The exercises below put it to work on realistic business data rather than abstract examples.
How long does it take to learn EOMONTH?
Most people can write a working EOMONTH formula within twenty minutes of practice. Getting it right under pressure — with edge cases, unsorted data and ranges that must survive being filled down — is what the harder exercises here are for.