How to convert sql dates range to Daily Row - sql

Question

How do I convert a date range so each day is 1 row with the start and end time for that day?
I looked at this post about date ranges to row - but this is a different problem. The other solution linked above does not give the time from start to finish for each day - and thus does not allow for duty factor or utilization calculations, and or the build of a Gantt chart.
We would have an ID field, a Start Date, and an End Date as our base table. We want to convert this to contain the ID Field per day with how much time was consumed in that range.
This is very useful when converting a start and end dates to daily duty factor and a host of other needs like equipment utilization.

Answer 1

I had a lot of help from this community figuring this out. I wanted to put the final SQL script here for others to use as well.
WITH cte ([VID],[StartTime],[EndTime]) AS
( SELECT tbl.[ID] as 'VID'
,CONVERT(VARCHAR(19), tbl.[StartDT], 120) AS 'StartTime'
,CASE
WHEN tbl.[EndDT] <= CONVERT(VARCHAR(11), tbl.[StartDT]+1, 120) + '00:00:00' THEN CONVERT(VARCHAR(19), tbl.[EndDT], 120)
ELSE CONVERT(VARCHAR(11), tbl.[StartDT]+1, 120) + '00:00:00'
END as 'EndTime'
FROM [SourceTable] as tbl
WHERE DATEDIFF(DAY,tbl.[StartDT],tbl.[EndDT] )<=365
UNION ALL
SELECT tbl.[ID] as 'VID'
,CONVERT(VARCHAR(11), DATEADD(DAY, 1, cte.[StartTime]), 120) + '00:00:00' AS 'StartTime'
,CASE
WHEN CONVERT(VARCHAR(19), tbl.[EndDT], 120) < CONVERT(VARCHAR(11), DATEADD(DAY, 2, cte.[StartTime]), 120) + '00:00:00'
THEN CONVERT(VARCHAR(19), tbl.[EndDT], 120)
ELSE CONVERT(VARCHAR(11), DATEADD(DAY, 2, cte.[StartTime]), 120) + '00:00:00'
END AS 'EndTime'
FROM cte
INNER JOIN [SourceTable] as tbl
ON cte.VID = tbl.ID
WHERE CONVERT(VARCHAR(11), cte.[StartTime], 120) < CONVERT(VARCHAR(11), tbl.[EndDT], 120))
SELECT VID AS ID
,[StartTime]
,[EndTime]
,DateDiff (second,[StartTime],[EndTime]) / 3600 As 'Hours'
,DateDiff (second,[StartTime],[EndTime])/60 % 60 as 'Minutes'
,((DateDiff (Second,[StartTime],[EndTime]) / 3600)*60)+(DateDiff (second,starttime,endtime)/60 % 60) as 'Total Minutes'
,DATEPART(week,[StartTime]) AS weeknum
,MONTH([StartTime]) AS MonthNumber
,DATENAME(month,[StartTime]) AS MonthName
FROM cte order by Id, [StartTime]
option (maxrecursion 0);