# CampaignCallingHours

> The CampaignCallingHours object.

| Field | Type | Description |
|---|---|---|
| `days` | array of one of `mon`, `tue`, `wed`, `thu`, `fri`, `sat`, `sun` or null | The days calls are made on. Every day unless you say. |
| `end_hour` | integer or null | The hour calls stop starting, 1–24, after `start_hour`. 20 unless you say. |
| `start_hour` | integer or null | The first hour a call may start, 0–23. 9 unless you say. |