[This is preliminary documentation and is subject to change.]
The ZoneInterval for the period before the transition, starting at the beginning of time.

C# | Visual Basic | Visual C++ |
public ZoneInterval EarlyInterval { get; }
Public ReadOnly Property EarlyInterval As ZoneInterval Get
public: property ZoneInterval^ EarlyInterval { ZoneInterval^ get (); }
Assembly: NodaTime.Testing (Module: NodaTime.Testing.dll) Version: 1.2.0.0 (1.2.0)