Date Difference in SQL Server in Days, Hours, Minutes and Seconds

A lot of users often ask questions related to finding difference between two date. The results are expected in Days, Hours, Minute and Seconds. Here’s a query that shows how to find the difference between two dates in SQL Server

Date Difference in SQL Server

Here’s the query in a readable format to try out

SET @Startdate = '2011-01-02 11:35:26'
SET @Enddate = '2011-01-06 03:15:31'

-- Query by
-- Total seconds in a day
DECLARE @TotalSec int
SET @TotalSec = 24*60*60;

-- Convert DateDiff into seconds
DECLARE @DiffSecs int
SET @DiffSecs = DATEDIFF(SECOND, @Startdate, @Enddate)

CONVERT(char(2), (@DiffSecs/@TotalSec))as [Days],
CONVERT(char(2), ((@DiffSecs%@TotalSec)/3600)) as [Hours],
CONVERT(char(2), (((@DiffSecs%@TotalSec)%3600)/60)) as [Minutes],
CONVERT(char(2), (((@DiffSecs%@TotalSec)%3600)%60)) as [Seconds]

The query shown above is quite simple. We first calculate the total seconds in a day (86400) and store it in a variable. We then use the DATEDIFF function and calculate the difference between two dates in seconds and store it in another variable. Finally we use the CONVERT function to apply some calculations and get the difference between two dates in days, hours, minutes and seconds


Date Difference in SQL Server

About The Author

Suprotim Agarwal, MCSD, MCAD, MCDBA, MCSE, is the founder of DotNetCurry, DNC Magazine for Developers, SQLServerCurry and DevCurry. He has also authored a couple of books 51 Recipes using jQuery with ASP.NET Controls and a new one recently at The Absolutely Awesome jQuery CookBook.

Suprotim has received the prestigous Microsoft MVP award for nine times in a row now. In a professional capacity, he is the CEO of A2Z Knowledge Visuals Pvt Ltd, a digital group that represents premium web sites and digital publications comprising of Professional web, windows, mobile and cloud developers, technical managers, and architects.

Get in touch with him on Twitter @suprotimagarwal, LinkedIn or befriend him on Facebook

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