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calculate hours difference

Printed From: Crystal Reports Book
Category: Crystal Reports 9 through 2016
Forum Name: Technical Questions
Forum Discription: Formulas, charting data, Crystal syntax, etc.
Printed Date: 26 Sep 2020 at 11:22pm

Topic: calculate hours difference
Posted By: sanchezgmc06
Subject: calculate hours difference
Date Posted: 16 Jun 2020 at 9:41am

I need to be able to calculate the difference in hours form 2 separate date and time fields

Date 1
Time 1

Date 2
Time 2

I attempted using the following formula however I dont believe the date and time are stored in the date field.

local numbervar tt := datediff('h',date1,date2);
local numbervar d := truncate(tt/24,0);
local numbervar h := remainder(tt,24);
local stringvar tt_d := totext(d,0,"") + ' days ';
local stringvar tt_h := totext(h,0,"") + ' hours';
local stringvar tt_string := tt_d & tt_h

thank you!!

Posted By: kevlray
Date Posted: 18 Jun 2020 at 4:58am
If there is no time component tied to the fields in question.  Then thee is no way to properly do a hour difference.

Have you done test formulas to see what intermediate values you get?
Also there no reason to calculate the days form the hours.  You could do a date diff of days an put that in variable.

Posted By: sanchezgmc06
Date Posted: 18 Jun 2020 at 5:49am
This ended up working for me

Thank you for your help

DateDiff("h", DateTime({StartDate},{StartTime}), DateTime({EndDate},{EndTime}))
& " Hours and " &
DateDiff("n", DateTime({StartDate},{StartTime}), DateTime({EndDate},{EndTime})) Mod 60
& " Minutes"

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