Dividing the time in equal intervals

Sumal.V asked:

In a line graph I plot certain values against time programatically(Macro)for a survey.

The number of hours in a survey are not same always. In order to divide the x-axis (time) in equal intervals,

Eg: The time is starts from 00:00:00 to 19:00:00.
     TotalTime = FinalTime - InitialTime
     TotalTime =  19:00:00 - 00:00:00
     TotalTime = 19:00:00

But in a new data set I got, the survey runs for 2 / 3 days continuously.
So now to check the total number of hours, when the final and initial values are subtracted, the resulting value is only few hours.

ex:

Start Time = 01:00:00(Day1), End Time = 07:00:00(Day2)
The result is 06:00:00

but this is incorrect

Need some suggestions please

Tags: C++, Microsoft Excel, General

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