Format hh:mm with SQL Server

Question

I'm using

CONVERT( CHAR(5), DATEADD(n, value),0), 108)

to convert minutes to a hh:mm format, but it breaks when I have more minutes then fit in 24hrs. E.g. 1440 gives 00:00 instead of 24:00.

How can I fix that?

Answer 1

Consider using the % modulo operator:

select cast(n/60 as varchar(20)) + ':' + 
       right('0' + cast(n%60 as varchar(2)), 2)

Answer 2

Try something like this:

declare @minutes int
select @minutes = 1440

select convert(varchar, @minutes/60) + ':' + right ('0'+convert(varchar, @minutes%60), 2)