The .NET DateTime class is not just for getting the current date. It can help you do date calculations and much more.
Latest Date & Time Articles
Discover how to design user-driven applications
Conrad Jalali shows how to extend the functionality of the ASP.NET Calendar control to remove some of the annoying postback delays that occur when populating a text box with a date from a popup calendar.
Implement a simple timer in C#.
Dates and times can be formatted a number of different ways. Learn how to format dates and times in .NET. While this article uses C#, the lesson is applicable to VB .NET and Managed C++ programmers.
C# class for implementing time synchronization into your application
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Learn more about a few commonly used components and explore their utility and usages.
Make a RESTful call from a UWP app to the Azure management API, the same API the portal uses, to start and stop an app service.
Using VB Namespaces can help tremendously in achieving your goal of keeping your code organized.