description = "Primarily used by ${data.pagerduty_on_call.oncalls.0.id}"
}
```
## Argument Reference
The following arguments are supported:
*`time_zone` - (Optional) Time zone in which dates in the result will be rendered.
*`include` - (Optional) List of of additional details to include. Can be `escalation_policies`, `users`, `schedules`.
*`user_ids` - (Optional) Filters the results, showing only on-calls for the specified user IDs.
*`escalation_policy_ids` - (Optional) Filters the results, showing only on-calls for the specified escalation policy IDs.
*`user_ids` - (Optional) Filters the results, showing only on-calls for the specified schedule IDs.
*`since` - (Optional) The start of the time range over which you want to search. If an on-call period overlaps with the range, it will be included in the result. Defaults to current time. The search range cannot exceed 3 months.
*`until` - (Optional) The end of the time range over which you want to search. If an on-call period overlaps with the range, it will be included in the result. Defaults to current time. The search range cannot exceed 3 months, and the until time cannot be before the since time.
*`earliest` - (Optional) This will filter on-calls such that only the earliest on-call for each combination of escalation policy, escalation level, and user is returned. This is useful for determining when the "next" on-calls are for a given set of filters.
## Attributes Reference
*`oncalls` - A list of on-call entries during a given time range.