How to convert number of minutes to hh:mm format in TSQL?

sql-server tsql sql-server-2008 type-conversion datediff
Learner picture Learner · Jul 18, 2013 · Viewed 150.5k times · Source

I have a select query that has DURATION column to calculate number of Minutes . I want to convert those minutes to hh:mm format.

Duration has values like 60, 120,150

For example:

60 becomes 01:00 hours

120 becomes 02:00 hours

150 becomes 02:30 hours

Also, this is how I retrieve DURATION (Minutes)

DATEDIFF(minute, FirstDate,LastDate) as 'Duration (Minutes)'

Answer

8kb picture 8kb · Jul 18, 2013

You can convert the duration to a date and then format it:

DECLARE
    @FirstDate datetime,
    @LastDate datetime

SELECT
    @FirstDate = '2000-01-01 09:00:00',
    @LastDate = '2000-01-01 11:30:00'

SELECT CONVERT(varchar(12), 
       DATEADD(minute, DATEDIFF(minute, @FirstDate, @LastDate), 0), 114) 

/* Results: 02:30:00:000 */

For less precision, modify the size of the varchar: 

SELECT CONVERT(varchar(5), 
       DATEADD(minute, DATEDIFF(minute, @FirstDate, @LastDate), 0), 114) 

/* Results: 02:30 */

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