Excel/Time Difference


Hi Tom,

Happy New Year... I have a doubt on time.. In A1 I have date 01/01/2012 and B1 I have time as 08:21 pM (this is the time captured on that date).

On A2 date as 01/02/2012 and B2 time as 10:15 AM.

Is there any formula to check the time has crossed 24 hours or not.. Kindly help me out in this issue. Thanks.


Are you asking if 24 hours have elapsed between the two date/time combinations.  



will tell  you how many hours have elapsed.   Your example gives me 13.9 hrs

If you just want to see if they are on different days, you would just check if A1<>A2  or you could subtract the dates


if neither of those help, then clarify the question.

Tom Ogilvy

About Excel
This topic answers questions related to Microsoft Excel spreadsheet (or workbook) stand-alone or Mircrosoft Office Excel including Excel 2003, Excel 2007, Office 2000, and Office XP. You can get Excel help on Excel formulas(or functions), Excell macros, charting in Excel, advanced features, and the general use of Excel. This does not provide a general Excel tutorial nor the basics of using a spreadsheet. It provides specific answers to using Microsoft Excel only. If you do not see your Excel question answered in this area then please ask an Excel question here


All Answers

Answers by Expert:

Ask Experts


Tom Ogilvy


Selected as an Excel MVP by Microsoft since 1999. Answering Excel questions in Allexperts since its inception in 2001. Able to answer questions on almost all aspects of Excel's internal capabilities. If seeking a VBA solution, please specify that in your question itself so I give you the answer you want. [Excel has weak protection - if you are distributing an application, I don't answer questions on how to protect your project from your users.]


Extensive experience.

Master of Science (MS) degree Operations Research (ORSA)

Awards and Honors
Microsoft MVP in Excel.

©2017 About.com. All rights reserved.