Uncas.Core by Ole Lynge Soerensen

<PackageReference Include="Uncas.Core" Version="1.1.0.154" />

 SystemTime

public static class SystemTime
Handles time in the system.
using System; namespace Uncas.Core { public static class SystemTime { private static Func<DateTime> _now = () => DateTime.Now; public static Func<DateTime> Now { get { return _now; } set { _now = value; } } } }