CODEWITHSUNDEEP
c#.netdatetime
PandaNL
PandaNL

Reputation: 848

Getting time difference between two values

In my application I have 4 TextBoxes, and 2 TextBoxes to enter the start-time, and 2 TextBoxes to enter end-time.

The user will always enter a completed time, so the input will always be 11:30, 12:45, and so on.

How can I get the difference in hours and minutes between start and endtime?

Upvotes: 10

Views: 31436

Answers (8)

Icarus
Icarus

Reputation: 63970

TimeSpan difference = DateTime.Parse(txtbox1.Text) - Datetime.Parse(txtbox2.Text);

Example:

TimeSpan difference =  DateTime.Parse("12:55")-DateTime.Parse("11:45");
double hourDiff=  difference.TotalHours;
double minutes = difference.TotalMinutes;
Console.WriteLine(hourDiff);//1.16666666666667
Console.WriteLine(minutes);//70

Upvotes: 0

goric
goric

Reputation: 11915

You can subtract two DateTimes and receive a TimeSpan structure. This has properties for retrieving Days, Hours, Minutes, Seconds, etc.

var first = new DateTime(2012, 05, 08, 10, 30, 00);
var second = new DateTime(2012, 05, 08, 11, 49, 13);

var diff = first - second;
var hours = diff.Hours;
var mins = diff.Minutes;

Upvotes: 0

David Anderson
David Anderson

Reputation: 13690

You can get a TimeSpan of the difference by subtractraction.

TimeSpan time1 = TimeSpan.Parse(textBox1.Text);
TimeSpan time2 = TimeSpan.Parse(textBox2.Text);

TimeSpan difference = time1 - time2;

int hours = difference.Hours;
int minutes = difference.Minutes;

Upvotes: 6

Binary Worrier
Binary Worrier

Reputation: 51719

use TimeSpan, no need to use dates

var start = TimeSpan.Parse(start.Text);
var end = TimeSpan.Parse(end.Text);

TimeSpan result = end - start;
var diffInMinutes = result.TotalMinutes();

Upvotes: 3

Zaki
Zaki

Reputation: 5600

Use timespan : 

    DateTime dt1 = new DateTime(starttime.text);
    DateTime dt2 = new DateTime(endtime.text);

    TimeSpan result = dt2 - dt1;

Then you can get the minutes, seconds etc from result.

Upvotes: 1

Mitja Bonca
Mitja Bonca

Reputation: 4546

Use TimeSpan class, and Subtract method of DateTime.

        DateTime t1 = Convert.ToDateTime(textBox1.Text);
        DateTime t2 = Convert.ToDateTime(textBox2.Text);
        TimeSpan ts = t1.Subtract(t2);

Upvotes: 18

Davide Piras
Davide Piras

Reputation: 44605

create two DateTime objects parsing the values in the TextBox controls and simply subtract the two DateTime, you will get a TimeSpan object which is what you are looking for.

Upvotes: 5

RhysW
RhysW

Reputation: 453

convert the hours to minutes, add it to the existing minutes, convert those down to total seconds, do the same with endtime. minus them from each other, convert them back up to hours and minutes. remembering 60 minutes in an hour, 60 seconds in a minute, thats how i would deal with it. because total seconds will always be the same, its hard trying to teach a computer trying to wrap around from 60 back to 0 or from 12 to 1. much easier to use somethign perfectly linear like seconds. then reconvert upwards

Upvotes: 0

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