Microsoft.Extensions.TimeProvider.Testing 9.0.0-preview.3.24209.3

Prefix Reserved
This is a prerelease version of Microsoft.Extensions.TimeProvider.Testing.
There is a newer version of this package available.
See the version list below for details.
dotnet add package Microsoft.Extensions.TimeProvider.Testing --version 9.0.0-preview.3.24209.3
                    
NuGet\Install-Package Microsoft.Extensions.TimeProvider.Testing -Version 9.0.0-preview.3.24209.3
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="9.0.0-preview.3.24209.3" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="9.0.0-preview.3.24209.3" />
                    
Directory.Packages.props
<PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Microsoft.Extensions.TimeProvider.Testing --version 9.0.0-preview.3.24209.3
                    
#r "nuget: Microsoft.Extensions.TimeProvider.Testing, 9.0.0-preview.3.24209.3"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package Microsoft.Extensions.TimeProvider.Testing@9.0.0-preview.3.24209.3
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=Microsoft.Extensions.TimeProvider.Testing&version=9.0.0-preview.3.24209.3&prerelease
                    
Install as a Cake Addin
#tool nuget:?package=Microsoft.Extensions.TimeProvider.Testing&version=9.0.0-preview.3.24209.3&prerelease
                    
Install as a Cake Tool

Microsoft.Extensions.TimeProvider.Testing

Provides a FakeTimeProvider for testing components that depend on System.TimeProvider.

Install the package

From the command-line:

dotnet add package Microsoft.Extensions.TimeProvider.Testing

Or directly in the C# project file:

<ItemGroup>
  <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="[CURRENTVERSION]" />
</ItemGroup>

Usage Example

FakeTimeProvider can be used to manually adjust time to test time dependent components in a deterministic way.

FakeTimeProvider derives from TimeProvider and adds the following APIs:

public FakeTimeProvider(DateTimeOffset startDateTime)
public DateTimeOffset Start { get; }
public TimeSpan AutoAdvanceAmount { get; set; }
public void SetUtcNow(DateTimeOffset value)
public void Advance(TimeSpan delta)
public void SetLocalTimeZone(TimeZoneInfo localTimeZone)

These can be used as follows:

var timeProvider = new FakeTimeProvider();
var myComponent = new MyComponent(timeProvider);
timeProvider.Advance(TimeSpan.FromSeconds(5));
myComponent.CheckState();

Feedback & Contributing

We welcome feedback and contributions in our GitHub repo.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Framework net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

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Version Downloads Last Updated
9.9.0 62,706 9/9/2025
9.8.0 249,516 8/12/2025
9.7.0 451,985 7/8/2025
9.6.0 430,688 6/10/2025
9.5.0 473,420 5/13/2025
9.4.0 895,821 4/8/2025
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