June 2003
Intermediate to advanced
800 pages
34h 20m
English
Content preview from Microsoft® Visual Basic® .NET Programmer's CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Add and Subtract Dates and Times
Problem
You need to perform calculations with dates and times.
Solution
Use the TimeSpan and DateTime structures, both of which provide Add and Subtract methods.
Discussion
The .NET Framework provides two structures for manipulating date and time information. The DateTime structure stores a reference to a single date and time (such as January 20, 2004 at 12:00 AM). The TimeSpan structure stores an interval of time (such as three hours). TimeSpan is ultimately measured in ticks (a unit of time equal to 100 nanoseconds), and DateTime is stored as the number of ticks since 12:00:00 midnight, January 1, 0001 C.E. The greater a DateTime is, the later the date. The greater a TimeSpan is, the larger the interval of time.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.