# Scheduled routing

A virtual-model strategy that picks targets by time of day.

| Setting | Default | Meaning |
| --- | --- | --- |
| Timezone | UTC | Timezone for the peak window |
| Peak starts | 09:00 | Inclusive |
| Peak ends | 17:00 | Exclusive. A window can cross midnight |
| Peak targets | None | Used during the window, in priority order |
| Off-peak targets | None | Used outside the window, in priority order |

At least one target list is required. If no target for the current period is available, the first available target of the virtual model serves the request, and fallback still applies. Requests are billed at the rate of the model that served them.