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# How to Block Time as ‘Busy’ in Google Calendar to Prevent Double Bookings

How to Block Time as ‘Busy’ in Google Calendar to Prevent Double Bookings

also: **Title:** How to Mark Time as Busy in Google Calendar to Sync with Booking Calendar

**Summary:**
If bookings appear during times when you’re unavailable, it’s usually because those events in Google Calendar are marked as **Free** instead of **Busy**. The booking system only blocks times marked as “Busy.”
**Steps:**
1. Open **Google Calendar**.
2. Click the time or date range you want to block.
3. In the event settings, change the status from **Free** to **Busy** (or select **Out of office**).
4. If you’re taking several days off, create an **“Out of office”** event and select the full date range.
5. Click **Save**.
6. The booking system will automatically sync and hide those times from availability.
**Tip:**
Watch this short tutorial for a visual guide: [https://www.youtube.com/watch?v=KvylMIFQiWI](https://www.youtube.com/watch?v=KvylMIFQiWI)
**Common Causes:**
* Events marked as **Free** instead of **Busy** or **Out of office**.
* Calendar connection is correct, but personal or holiday blocks not properly set.
* Buffer added, but unavailable times not blocked directly in Google Calendar.
**Solution:**
Always mark unavailable times (meetings, holidays, OOF periods) as **Busy** or **Out of office** in Google Calendar. Once updated, the booking system will automatically prevent appointments during those periods.

**Troubleshooting:**
* Refresh or re-sync your connected calendar in the booking system.
* Check that the correct Google Calendar is connected to your booking tool.
* Ensure your booking platform has permission to access your calendar’s events.
* If the issue continues, remove and reconnect your Google Calendar integration.