Convert decimal time to hours and minutes

Question

Been struggling with this and can\'t seem to find the right answer, although there are plenty of mentions for converting, but nothing specific is working.

I need to

Answer 1

DECLARE @f FLOAT = 13.5;

SELECT CONVERT(TIME(0), DATEADD(MINUTE, 60*@f, 0));

Or if you just want hh:mm as a string:

SELECT CONVERT(CHAR(5), DATEADD(MINUTE, 60*@f, 0), 108);

Just be careful if you have values >= 24.