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url: /api/kiln/interfaces/TimeState.md
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[Kiln API](../../index.md) / [kiln](../index.md) / TimeState

# Interface: TimeState

Clock values a system sees. All in seconds except `frame` and `tick`.

## Properties

| Property | Type | Description |
| ------ | ------ | ------ |
|  `step` | `number` | Fixed step length (1 / fixedHz). |
|  `dt` | `number` | This phase's delta: `step` inside Fixed, the clamped frame delta elsewhere. |
|  `elapsed` | `number` | Simulated seconds: tick \* step. Deterministic. |
|  `frame` | `number` | Frames run so far. |
|  `tick` | `number` | Fixed steps run so far. |
|  `alpha` | `number` | Interpolation factor between the last two fixed steps, for rendering. |