How do I get the time difference between two DateTime objects using C#?

How do I get the time difference between two `DateTime` objects using C#?

What you need is to use the [DateTime][1] classs Subtract method, which returns a [TimeSpan][2].

var dateOne = DateTime.Now;
var dateTwo = DateTime.Now.AddMinutes(-5);
var diff = dateTwo.Subtract(dateOne);
var res = String.Format("{0}:{1}:{2}", diff.Hours,diff.Minutes,diff.Seconds));


[1]:

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[2]:

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You need to use a [TimeSpan][1]. Here is some sample code:

TimeSpan sincelast = TimeSpan.FromTicks(DateTime.Now.Ticks - LastUpdate.Ticks);


[1]:

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IF they are both UTC date-time values you can do `TimeSpan diff = dateTime1 - dateTime2;`

Otherwise your chance of getting the correct answer in every single possible case is zero.

private void button1_Click(object sender, EventArgs e)
{
TimeSpan timespan;
timespan = dateTimePicker2.Value - dateTimePicker1.Value;
int timeDifference = timespan.Days;
MessageBox.Show(timeDifference.ToString());
}

The way I usually do it is subtracting the two DateTime and this gets me a TimeSpan that will tell me the diff.

Here's an example:

DateTime start = DateTime.Now;
// Do some work
TimeSpan timeDiff = DateTime.Now - start;
timeDiff.TotalMilliseconds;