Calculating with custom date format.

Hi EE,

Help needed here. I use imported data where dates are expressed in this format:

Example: 12.03.30

And I have pair of data, where I need to get the days between dates.


A1 = 12.03.12
A2 = 12.03.30

A2 - A1 = 18 days.

How to compute this in Excel?

Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

byundtMechanical EngineerCommented:
In US Excel with dates all in year 2000 or later, the following formula works:
=SUBSTITUTE("20" & A2,".","/")-SUBSTITUTE("20" & A1,".","/")

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
capterdiAuthor Commented:

byundtMechanical EngineerCommented:
I wasn't sure if the formula would be working in Mexico--because you might be using a different default date format (dd/mm/yy).

The following formula should always work:
capterdiAuthor Commented:
Both formulas have worked OK. I use english version of Excel.

It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Excel

From novice to tech pro — start learning today.