# Sandbox.RealTimeUntil.Fraction

```csharp
double Fraction { get; set; }
```

The countdown, but as a fraction, i.e. a value from 0 (start of countdown) to 1 (end of countdown)

Declared in [Sandbox.RealTimeUntil](/api/Sandbox.RealTimeUntil).
Assembly: `Sandbox.System`.