Best Slack Shared Calendar for Your Team

The official Google Calendar app only syncs one account at a time, which is a major limitation. However, Clockwise (premium) and Calendly (paid tiers) support multiple calendar connections, allowing you to merge work and personal calendars. For basic needs, you'll need to choose which calendar to prioritize in Slack.

The Slack integrations themselves are free, but to use team features like shared calendars and professional collaboration, you need a paid Google Workspace ($7+/user/month) or Microsoft 365 ($6+/user/month) subscription. Individual users can connect personal Gmail or Outlook accounts for free, but this lacks team functionality.

Officely is purpose-built for this exact use case. It's Slack-native and provides desk booking, office attendance visibility, parking management, and analytics. The Free plan supports up to 5 users, and paid plans start at just $2.50/user/month. Traditional calendars like Google and Outlook don't handle physical resource booking.

You mark internal meetings as "flexible," and Clockwise's AI analyzes all attendees' schedules to find optimal times. It automatically moves flexible meetings to cluster them together (often in afternoons), creating long blocks of uninterrupted Focus Time in mornings. The AI respects preferences, working hours, and never moves external meetings or events marked as non-flexible.

While technically possible, Calendly is optimized for external scheduling. For internal meetings, Clockwise or the built-in Google/Outlook integrations are more appropriate. Calendly shines when you need to let people outside your organization book time with you or your team (sales demos, interviews, client meetings, office hours).

Yes! All the major calendar integrations detect video conferencing links in your events and provide one-click join buttons directly in Slack. This works with Zoom, Google Meet, Microsoft Teams, Webex, and most other popular platforms. You'll get a notification with a "Join Meeting" button when your call starts.

Clockwise provides a shared team availability calendar showing OOO and WFH days. Officely shows who's in the office each day. For real-time availability, Slack status updates (synced from your calendar) give quick visibility. However, viewing detailed team calendars still typically requires opening the native calendar app.

If you're only syncing one calendar to Slack (the default for Google/Outlook), conflicts from other calendars won't be visible in your Slack status. This is why the single-calendar limitation is frustrating. Tools like Clockwise that support multiple calendars can detect conflicts across all connected calendars and update your status appropriately.

Yes! Suptask provides a calendar view that unifies tickets, tasks, deadlines, and meetings in one timeline. Traditional calendar apps only show time-based events, but Suptask brings task management into the calendar paradigm, giving you a complete view of all work commitments (time-based and task-based) in Slack.

Yes, with Google Calendar, Outlook Calendar, and Clockwise integrations. You can use slash commands or message actions to create events without leaving Slack. For paid Slack plans, you can also use Workflow Builder to automate event creation based on specific triggers (like when a message contains certain keywords or reactions).