Merge Calendars: The Ultimate Guide for Outlook, Google, and Apple [2025]

Doğa Kaplan
January 6, 2025
9
 min read
Contents

Managing multiple calendars across different platforms has become a common challenge in our lives. Whether you're juggling personal and work schedules or coordinating with team members, having calendars scattered across Outlook, Google, and Apple can lead to missed appointments, double bookings, and countless hours spent on manual coordination.

The good news is that there are effective ways to merge calendars in Outlook, Google Calendar, and iCal into a unified system. When properly integrated, your calendars can work together smoothly and eliminate the frustration of switching between platforms which means you make sure to never miss an important event.

In this in-depth guide, we'll walk you through step-by-step instructions on how to merge multiple Google calendars, how to merge calendars in Outlook, and how to sync your Apple calendar with other platforms. We'll explore both native solutions and introduce you to Zeeg, a powerful tool that simplifies calendar management by bringing all your schedules together in one place.

Challenges in Managing Multiple Calendars

Of course, using multiple calendars is a huge pain. If you've ever tried to merge calendars in Outlook or merge Google calendars, you know exactly what I'm talking about. Here are the real headaches that come with managing separate calendars:

1. The Dreaded Double Booking

We've all been there. You schedule a team meeting in your work calendar, only to realize you already had a dentist appointment in your personal calendar at the same time. Before you know it, you're sending those awkward "I need to reschedule" emails. Not fun.

2. The Copy-Paste Marathon 

Without knowing how to merge multiple calendars, you end up playing a never-ending game of copy and paste. Adding events to multiple calendars manually isn't just tedious - it's a recipe for mistakes. One typo in the meeting time, and suddenly you're joining a 3 AM call instead of 3 PM!

3. The Sync Dance 

Even after you figure out how to merge calendars, things don't always work smoothly. You update a meeting time in one place, but the change doesn't show up everywhere else. Next thing you know, half your team shows up an hour early, while others are still waiting for the "original" time.

4. Platform Battles 

Now, getting your Google Calendar to play nice with Outlook or Apple Calendar can feel like trying to teach cats and dogs to get along. Sure, it's possible, but it's not always pretty. Important details like attachments or meeting links often get lost in translation.

5. The Privacy Puzzle 

Here's a tricky one: you want your work team to see your availability, but maybe not that personal appointment marked "discuss career change" 😅. When you're trying to merge calendars or combine personal and professional schedules, keeping certain events private becomes a delicate balancing act.

6. The "Which Version is Right?" Problem 

When events exist in multiple places, it's like having too many cooks in the kitchen. Was that client meeting moved to Tuesday or Wednesday? Did everyone get the update? Who has the right version? It's enough to make your head spin.

7. Resource Management Mayhem 

If you're managing a team or office, try coordinating meeting rooms and equipment across different calendar systems. It's like playing 3D chess - blindfolded. Double-booked conference rooms and missing equipment become all too common.

But you're not alone in this struggle. In the next sections, we'll show you some practical solutions for these headaches, including how to make different calendar platforms work together easily.

How to Merge Calendars in Outlook

If you're living in Microsoft's ecosystem, you've probably wondered how to merge more than 2 calendars in Outlook at least once. Maybe you're juggling a personal calendar with your work schedule, or perhaps you're trying to coordinate with team members who each have their own Outlook calendars. Whatever your situation, merging Outlook calendars doesn't have to be such a headache.

Before we dive into the step-by-step process, here's what you need to know: 

  • Outlook actually offers several ways to merge calendars in Outlook, from quick manual methods to more sophisticated sharing options. The best approach depends on your specific needs - are you combining calendars permanently, or do you just need to view multiple calendars side by side? Do you need others to access the merged calendar, or is it just for your own use?

In this section, we'll walk you through the most reliable methods to merge Outlook calendars, starting with the basics and moving on to more advanced techniques. We'll cover everything from creating shared calendar folders to managing permissions and handling those pesky duplicate events that always seem to crop up.


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How to use calendly For Outlook: Plugin, Add-in & Workflows

Step-by-Step Guide: How to Merge Calendars in Outlook

Ready to bring all your Outlook calendars together? Here's how to do it, broken down into manageable steps:

1. Create Your New Calendar Hub

 First things first - you'll need a new calendar to serve as your main hub:

  • Open Outlook and click on the Calendar view
  • Right-click on "My Calendars" in the left pane
  • Select "New Calendar"
  • Name it something clear like "Combined Calendar" or "Main Schedule"

2. Import Your Other Calendars

Now comes the part where we actually merge Outlook calendars:

  • Open the calendar you want to merge in a separate window
  • Click on any event, then press Ctrl+A to select all events
  • Right-click and choose "Copy"
  • Go to your new combined calendar
  • Right-click on any date and select "Paste"

💡Pro Tip: Take it month by month if you're dealing with years of events. It's easier to manage and helps avoid any syncing hiccups.

3. Set Up Sharing Permissions

If other people need access to your merged calendar:

  • Right-click your new combined calendar
  • Select "Properties" then "Permissions"
  • Click "Add" to include team members
  • Choose appropriate permission levels (Editor for full access, Reviewer for view-only)

4. Clean Up Duplicate Events

Here's the slightly tedious but important part:

  • Scan through your combined calendar
  • Look for any duplicate entries (they'll usually be obvious)
  • Right-click duplicates and delete them
  • Pay special attention to recurring events - these often cause the most confusion

5. Update Your Default Calendar

Make your life easier going forward:

  • Right-click your new combined calendar
  • Select "Set as Default Calendar"
  • This ensures new events automatically go to the right place

6. Double-Check Your Work

Before deleting or hiding your old calendars:

  • Compare them side by side with your new combined calendar
  • Check a few key dates to ensure everything transferred correctly
  • Verify that recurring events maintained their proper schedule
  • Make sure all event details (locations, notes, attendees) came through

Pro Tips for Merging Outlook Calendars Successfully

Let's be real - while learning how to merge your calendars in Outlook isn't rocket science, there are some tricks that can save you major headaches down the road. Here are some hard-learned lessons from those who've been there:

Before You Start 

Back up everything - and I mean everything. Take screenshots of your important meetings for the next few weeks if you have to. Think of it like making a copy of your house key before changing the locks - it's just smart planning.

Avoid the Sync Mess

If you're using both Google and Outlook (who isn't these days?), temporarily pause any automatic syncing between them while you merge calendars. Trust me on this one - dealing with duplicate events is like playing whack-a-mole with your schedule.

Color Code Like a Pro 

Use Outlook's color coding to keep track of where each event came from. For example:

  • Blue for work meetings
  • Green for personal appointments
  • Red for deadlines 

This makes it super easy to spot if something's in the wrong place.

Regular Calendar Cleanup 

Set a monthly reminder to check for duplicate entries. It's like doing a digital declutter - a little maintenance goes a long way in keeping your calendar running smoothly.

While these manual methods work, they can still be pretty time-consuming. That's where Zeeg comes in - it handles all this behind the scenes automatically, so you can focus on actually attending your meetings instead of managing them.

How to Merge Google Calendars

If you're like most people, your Google Calendar is probably the central hub of your schedule. But when you're dealing with multiple calendars - maybe a work calendar, a shared family calendar, and a personal one - things can get messy fast. But merging Google calendar is actually easier than you might think.

Whether you're trying to figure out how to merge two Google calendars into one system, or you need to merge multiple Google calendars for your team, Google offers several built-in ways to make it happen. The trick is knowing which method works best for your specific situation.

In this section, we'll walk you through different ways to combining your Google calendars, from quick fixes to more permanent solutions. And don't worry - we'll keep it simple and straight to the point, so you can get back to actually managing your schedule.

Step-by-Step: How to Merge Google Calendars

Let's break this down into manageable steps that actually make sense in the real world:

1. Pick Your Main Calendar 

First up, decide which calendar will be your "home base." This is usually your personal Gmail calendar or your main work calendar - whichever one you use most often. 

💡Tip: Choose the one that already has most of your important recurring events to save yourself some copying later.

2. Set Up Calendar Sharing 

Before you start merging Google calendars, make sure you have access to all the calendars you want to combine:

  • Open Google Calendar settings
  • Find "Share with specific people"
  • Add the email addresses connected to your other calendars
  • Give yourself "Make changes and manage sharing" permissions

3. Enable Two-Way Sync

Here's where you can save yourself tons of manual work:

  • Go to your Google Calendar settings
  • Look for "Add calendar" > "Subscribe to calendar"
  • Enter the email address for your other calendar
  • Choose visibility settings and permissions

💡Pro Tip: If you're trying to merge two Google calendars that you own, you can skip straight to importing events instead of dealing with sharing permissions.

4. Import Events From Other Calendars 

For calendars that can't be synced automatically:

  • Open the secondary calendar
  • Click the three dots next to the calendar name
  • Select "Settings and sharing"
  • Scroll to "Export calendar"
  • Import the file into your main calendar

5. Double-Check Everything 

Before you start deleting any old calendars:

  • Turn on all calendars in the left sidebar
  • Look for any missing or duplicate events
  • Check that recurring events transferred correctly
  • Verify that event details (like video call links and locations) came through


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Merge Your Outlook and Google Calendars (Finally!)

Why It's Usually a Pain 

Most of us end up using both Outlook and Google calendars - maybe Outlook for work and Google for everything else. The problem? These two weren't exactly designed to play nice together. When you try to merge Google calendars with Outlook manually, you'll run into some frustrating issues:

  • Changes made in one calendar don't automatically show up in the other
  • Events get duplicated or, worse, disappear entirely
  • Time zones get mixed up, turning your 2 PM meeting into a midnight call
  • Recurring events break in weird ways
  • Meeting attachments and links often vanish into the digital void

The Manual Method (And Why It's Not Great) 

Sure, you could copy and paste every single event between calendars. But let's be real - who has time for that? Plus, it's like playing calendar whack-a-mole: update something in Google, rush to update it in Outlook, forget which version is current, rinse and repeat.

A Better Way Forward 

This is where modern tools like Zeeg come in to save your sanity. Instead of wrestling with manual syncing or unreliable free connectors, you get:

  • True two-way syncing between Outlook and Google
  • Automatic conflict resolution (no more double bookings!)
  • All your calendar details preserved (including those important meeting links)
  • Real-time updates across all platforms
  • Smart handling of recurring events

Think of it like having a personal assistant who makes sure all your calendars are always in perfect sync. No more checking multiple apps to know if you're actually free next Tuesday.

Making the Switch 

You don't even have to change how you work. Keep using Outlook for work stuff and Google Calendar for personal events - they'll stay perfectly in sync behind the scenes.

Meet Zeeg: Your Calendar Integration Game-Changer

Tired of juggling multiple calendars? Let's talk about how Zeeg makes your life easier by bringing all your calendars under one roof. Here's what you get:

One Calendar to Rule Them All 

Imagine opening just one app and seeing all your events, no matter where they live. Zeeg makes this happen by:

  • Syncing everything between Outlook, Google, and Apple calendars
  • Catching double-bookings before they happen
  • Giving you one clean dashboard for all your schedules
  • Letting you decide which calendars take priority
  • Keeping everything updated automatically

How It Actually Works

For Outlook Users 

When you need to merge calendars in Outlook, Zeeg has you covered:

  • Works with both desktop Outlook and Office 365
  • New meetings show up in Outlook instantly
  • Changes sync both ways automatically

For Google Calendar Fans 

Want to merge multiple Google calendars? Easy:

  • Brings all your Google calendars into one view
  • Syncs changes instantly across calendars
  • Keeps your sharing settings intact

For Apple Calendar Users 

Got an iPhone or Mac? Zeeg plays nice with Apple too:

  • Connects easily with iCloud
  • Updates appear on all your Apple devices
  • Maintains your existing calendar settings

For Enterprise Users 

Running Microsoft Exchange? We've got enterprise-grade features:

  • Connects with on-premise Exchange servers
  • Bridges the gap between Exchange and cloud services
  • Maintains your company's security requirements

The best part of all this is that you absolutely don't need to be a tech wizard to use any of this. Just connect your calendars once, and Zeeg handles all the complicated stuff behind the scenes. No more switching between apps, no more missed meetings, no more calendar chaos.

Why Zeeg Makes Calendar Merging Actually Work

Ever wish you could merge calendars in Outlook and Google without the usual headaches? That's exactly what Zeeg does. Let's break down how it makes your life easier:

Smart Calendar Management Made Simple 

Forget about manually copying events or dealing with sync errors. Zeeg handles the heavy lifting:

  • Automatically detects and prevents double bookings
  • Lets you decide which calendar wins when conflicts happen
  • Updates all your calendars instantly when plans change

Getting Started is a Breeze 

Here's how easy it is to merge multiple Google calendars or connect any other calendars:

1. Quick Setup (Like, Really Quick)
  • Head to your Zeeg settings
  • Click to connect your calendars (Google, Outlook, Apple - whatever you use)
  • Enter your login info once
  • Done! Zeeg handles everything else
2. Say Goodbye to Double Bookings 

Remember that time you accidentally scheduled two meetings at once? Zeeg makes sure that never happens again:

  • Sees all your calendars in one view
  • Spots conflicts before they happen
  • Shows you actual free time across all calendars
3. Team Scheduling That Actually Works 

Need to schedule a team meeting? Zeeg shows you when everyone's really free:

  • Checks availability across all team calendars
  • Finds times that work for everyone
  • Updates everyone's calendars automatically

No more email chains asking "When are you free?" or discovering someone has two meetings at once. Just simple, straightforward calendar management that works the way it should.

The End of Calendar Chaos

The key is finding a solution that works with your existing workflow rather than forcing you to change how you operate. While manual methods for merging calendars exist across all platforms, they often create more problems than they solve - from sync errors and missing events to the endless copy-paste cycle that eats away at your productive time.

Ready to simplify your calendar management? Tools like Zeeg offer a powerful solution, bringing all your calendars together in one place with automatic syncing and smart conflict prevention. Because at the end of the day, your calendar should work for you, not the other way around.