sql query date formatting (Hours:Minutes) - sql

Question

How to display values as Hours:Minutes format (eg 77, Result: 1:17)
info :
select
SUM([Travel Time] + [Total Productive Time])
from
vAction_Reg
where
incident_id = '10064068'
Result: 77.00
Need to get result in below format
(1:17)
Changed Query:
SELECT( SELECT ISNULL(SUM(action.service_time), 0) AS Expr1
FROM dbo.act_reg AS action
INNER JOIN dbo.act_type ON action.act_type_id = dbo.act_type.act_type_id
WHERE (dbo.act_type.act_type_n IN ('Travel Time')) AND (action.incident_id = inc.incident_id)) AS [Travel Time],
( SELECT ISNULL(SUM(action.service_time), 0) AS Expr1
FROM dbo.act_reg AS action
INNER JOIN dbo.act_type AS act_type_6 ON action.act_type_id = act_type_6.act_type_id
WHERE (act_type_6.act_type_n NOT IN ('Travel Time', 'Site Departure')) AND (action.incident_id = inc.incident_id)) AS [Total Productive Time],
( SELECT cast(total / 60 as varchar(8)) + ':' + cast(total % 60 as varchar(2))
FROM
( SELECT cast(sum([Travel Time] + [Total Productive Time]) as int) as total) T) AS [Total Service Time]
FROM dbo.incident AS inc
INNER JOIN dbo.assyst_usr ON inc.ass_usr_id = dbo.assyst_usr.assyst_usr_id
INNER JOIN dbo.serv_dept ON dbo.assyst_usr.serv_dept_id = dbo.serv_dept.serv_dept_id
WHERE (inc.incident_ref ='64483')

Answer 1

You can divide for hours, mod for remaining minutes:
select
cast(fld / 60 as varchar(8)) + ':' + cast(fld % 60 as varchar(2))
Update for ?money? - assumes no fractional parts;
select
cast(total / 60 as varchar(8)) + ':' + cast(total % 60 as varchar(2))
from (
select
cast(sum([Travel Time] + [Total Productive Time]) as int) as total
from
vAction_Reg
where
incident_id = '10064068'
) T

Answer 2

Create a function as below:
CREATE FUNCTION [dbo].[NumberToTime]
(
#Num int
)
RETURNS nvarchar(20)
AS
BEGIN
DECLARE #TimeDuration AS nvarchar(20)
SET #TimeDuration = (SELECT CAST((#Num / 60) AS VARCHAR(8)) + ':' +
CAST((#Num % 60) AS VARCHAR(2)))
RETURN #TimeDuration
END
To use the function:
select
dbo.NumberToTime(SUM([Travel Time] + [Total Productive Time])) from
vAction_Reg where
incident_id = '10064068'
It will return: 1:17