How to display a total of time values?

Using Crystal Report 8.5

In Crystal report time column values are String. I display a record order by person id.

Like this.

Personid Intime Outtime

001 08:00:00 17:00:00
001 14:00:00 22:00:00
002 07:00:00 10:00:00
002 04:00:00 21:00:00

...,

From the above report i need a total of Intime, total of Outtime group by personid

Expected Outtput

Personid Intime Outtime

001   08:00:00 17:00:00
001   14:00:00 22:00:00
Total 22:00:00 39:00:00

002   07:00:00 10:00:30
002   04开发者_如何学编程:00:00 21:00:30
Total 11:00:00 31:01:00

...,

I will display all the value along with total by personid wise.

Need Crystal Report Formula Help.

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Convert your times to seconds and then get your total. In your display format the seconds as hours, minutes seconds.
For the Intime field, in the Crystal Report, create a formula in your details section:

@IntimeSeconds  
ToNumber(Left({table.Intime}, 2) * 3600) + ToNumber(Mid({table.Intime}, 4, 2) * 60) + ToNumber(Mid({table.Intime}, 7, 2))  

You can now place a formula in the group footer to display the total Intime seconds as hh:mm:ss

@ShowTotalIntime  
Numbervar TotalTime := Count({table.Intime}, {table.Group});
Numbervar IntimeHours := TotalTime\3600;  
NumberVar IntimeMinutes := (TotalTime%3600)\60;  
Numbervar IntimeSeconds := (TotalTime%60);  
ToText(IntimeHours, "00") + ":" + ToText(IntimeMinutes, "00") + ":" ToText(IntimeSeconds, "00");  

Do a similar thing for Outtime.

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Take a look at my ElapsedTime() function. http://www.cogniza.com/blog/?p=31