# total time difference between more than two dates

• GSquared

SSC Guru

Points: 260824

Because of the leap year subtraction problem, it won't work if one of the dates is before, and one is after, 29 Feb in a leap year, and the two are in different years. I'm sure it could be corrected for, but I'm not sure it's worth it.

If it were sticking to days, like yours, it would work. But adding in months and years breaks it.

- Gus "GSquared", RSVP, OODA, MAP, NMVP, FAQ, SAT, SQL, DNA, RNA, UOI, IOU, AM, PM, AD, BC, BCE, USA, UN, CF, ROFL, LOL, ETC
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• John C. Woll

SSC Enthusiast

Points: 144

Humorous, entertaining and very informative. Thanks!:)

• Ian Yates

SSCoach

Points: 19738

I think that was the longest and most comprehensive reply I've ever seen on here 🙂 Shame it wasn't used 🙁 Hopefully when someone else asks the same question they'll search the forums and at least find lots of information in Jeff's answer!

• Jeff Moden

SSC Guru

Points: 996442

Thanks folks. I really appreciate the feedback especially on a long one like that.

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________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
"Change is inevitable... change for the better is not".

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• Rick Flego

Valued Member

Points: 61

this works for me:

SET @StartDate = (Select '2013-07-19 12:20:07.097')

Set @EndDate = (SELECT '2013-07-19 15:02:38.000')

SET @RESULT = (SELECT 'Starts in: ' + STR(FLOOR(CAST(@newDate-@RunDate AS FLOAT)),1) + ' days '

+ convert(varchar,datepart(hour,@EndDate-@StartDate)) + ' hrs '

+ convert(varchar,datepart(minute,@EndDate-@StartDate)) + ' mins')

Result is: 'Starts in: 0 days 2 hrs 42 mins'

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