subtract datetime.now from a datetime.now and truncat the millisecond

Question

I have the following inside my asp.net mvc web application:-

 scan.StartDate = System.DateTime.Now;
//do long job....
 scan.EndDate = System.DateTime.Now;

    var duration = (scan.EndDate - scan.StartDate);

now the duration will be something such as 00:00:50.0250000 so my question is how i can truncate the miliseconds and show only hour:minute:seconds ?

In a string? https://msdn.microsoft.com/en-us/library/1ecy8h51(v=vs.110).aspx — TyCobb, Sep 01 '15 at 23:00
yes i am converting it to a string later on , to send in an email — john Gu, Sep 01 '15 at 23:01
Then the link supplied is what you want. It shows how to format the TimeSpan. — TyCobb, Sep 01 '15 at 23:02
[Duplicate](http://stackoverflow.com/questions/1004698/how-to-truncate-milliseconds-off-of-a-net-datetime) shows what your are asking, if you need *just formatting* - answers to this post give you a way. — Alexei Levenkov, Sep 01 '15 at 23:25

score 2 · Answer 1 · edited Sep 03 '15 at 07:03

2

Here is the code which shall remove the milliseconds.msdn.

DateTime StartDate = System.DateTime.Now;
//do long job....
DateTime EndDate = System.DateTime.Now;               
var duration = (EndDate - StartDate);     
string st=duration.ToString("hh\\:mm\\:ss");

edited Sep 03 '15 at 07:03

Soner Gönül

94,086
102
195
339

answered Sep 01 '15 at 23:04

sumeet kumar

2,600
1
14
23

this will not work it mentioned mm does not exsits... – john Gu Sep 01 '15 at 23:08

score 1 · Accepted Answer · answered Sep 01 '15 at 23:07

1

Use this:

var result = string.Format("{0:D2}:{1:D2}:{2:D2}", duration.Hours, duration.Minutes, duration.Seconds);

answered Sep 01 '15 at 23:07

Yacoub Massad

26,733
2
34
59

subtract datetime.now from a datetime.now and truncat the millisecond

2 Answers2