?
Solved

How do I subtract time  in c#.net?

Posted on 2008-10-15
4
Medium Priority
?
1,649 Views
Last Modified: 2008-10-16
How do I subtract time  in c#.net?

How do I subtract for example (7:40 pm  - 7:20 pm) to result in just minutes.

My times are represented in this exact format
0
Comment
Question by:wademi
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
4 Comments
 
LVL 6

Expert Comment

by:RishadanPort
ID: 22726851
Convert both times into second format...

Then subtract seconds, and convert seconds into minutes.

Use this:

            TimeSpan time = <some time>;
            TimeSpan time2 = ....;
            int totalSeconds = time2.TotalSeconds - time.TotalSeconds;
0
 
LVL 6

Expert Comment

by:RishadanPort
ID: 22726887
Further example listed below.

You may need to research a bit more on how to convert to a DateTime from a string
DateTime time = Convert.ToDateTime(<put time here>);
DateTime time2 = Convert.ToDateTime(<put time here>);
 
TimeSpan stime = new TimeSpan(time.Hour, time.Minute, time.Second);
TimeSpan stime2 = new TimeSpan(time2.Hour, time2.Minute, time2.Second);
 
int seconds = stime2.TotalSeconds - stime.TotalSeconds;
int minutes = seconds * 60;

Open in new window

0
 
LVL 6

Expert Comment

by:RishadanPort
ID: 22726934
It turns out that this compiles, and runs correctly:

DateTime time = Convert.ToDateTime("7:40 pm");
DateTime time2 = Convert.ToDateTime("7:20 pm");
0
 
LVL 6

Accepted Solution

by:
RishadanPort earned 2000 total points
ID: 22726986
Here is my full updated solution:
DateTime time = Convert.ToDateTime("7:40pm");
DateTime time2 = Convert.ToDateTime("7:20pm");
 
TimeSpan span = new TimeSpan(time.Hour, time.Minute, time.Second);
TimeSpan span2 = new TimeSpan(time2.Hour, time2.Minute, time2.Second);
 
MessageBox.Show("Total Minutes is " 
   + span.TotalMinutes - span2.TotalMinutes);

Open in new window

0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Extention Methods in C# 3.0 by Ivo Stoykov C# 3.0 offers extension methods. They allow extending existing classes without changing the class's source code or relying on inheritance. These are static methods invoked as instance method. This…
Article by: Ivo
C# And Nullable Types Since 2.0 C# has Nullable(T) Generic Structure. The idea behind is to allow value type objects to have null values just like reference types have. This concerns scenarios where not all data sources have values (like a databa…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
Suggested Courses

764 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question