---
title: "On-call calendar scheduling | Grafana OnCall documentation"
description: "Use calendars to create on-call schedules Grafana OnCall allows you to use any calendar service that uses the iCal format to create customized on-call schedules for team members. Using Grafana OnCall, you can create a primary calendar that acts as a read-only schedule, and an override calendar that allows all team members to modify schedules as they change."
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

# Use calendars to create on-call schedules

Grafana OnCall allows you to use any calendar service that uses the iCal format to create customized on-call schedules for team members. Using Grafana OnCall, you can create a primary calendar that acts as a read-only schedule, and an override calendar that allows all team members to modify schedules as they change.

To learn more about creating on-call calendars, see the following topics:

- [About Grafana OnCall calendar scheduling](/docs/oncall/v0.0.39/calendar-schedules/about-calendars/)
- [Create an on-call schedule calendar](/docs/oncall/v0.0.39/calendar-schedules/create-calendar/)