Convert seconds to time in Transact SQL.

--
-- Convert seconds to HH:MM:SS
--

DECLARE @SecondsToConvert int
SET @SecondsToConvert = 10000

-- Declare variables
DECLARE @Hours int
DECLARE @Minutes int
DECLARE @Seconds int
DECLARE @Time datetime

-- Set the calculations for hour, minute and second
SET @Hours = @SecondsToConvert/3600
SET @Minutes = (@SecondsToConvert % 3600) / 60
SET @Seconds = @SecondsToConvert % 60

-- Store the datetime information retrieved in the @Time variable
SET @Time = (SELECT RTRIM(CONVERT(char(8), @Hours) ) + ':' + CONVERT(char(2), @Minutes) + ':' + CONVERT(char(2), @Seconds));

-- Display the @Time variable in the format of HH:MM:SS
SELECT CONVERT(varchar(8),CONVERT(datetime,@Time),108)