Here is some code that might help
, CASE WHEN Last_run_date = 0 THEN NULL
ELSE CONVERT(VARCHAR(10), CAST(CAST(Last_run_date AS VARCHAR(10)) AS DATE), 101)
END AS LastRunDate
, CAST(LEFT(RIGHT('000000' + CAST(last_run_time AS VARCHAR(6)), 6), 2) + ':'
+ SUBSTRING(RIGHT('000000' + CAST(last_run_time AS VARCHAR(6)), 6), 3, 2) + ':'
+ RIGHT(RIGHT('000000' + CAST(last_run_time AS VARCHAR(6)), 6), 2) AS TIME)
AS LastRunTime