eFront can be exported and synced with the most popular calendar applications such as

• Google calendar
• Outlook.com Calendar
• Yahoo! calendar

as well as most applications installed on your computer such as

• Outlook
• Thunderbird

It also supports the iCal calendar feed format (also known as  iCalendar or ICS format).

This gives you the ability to import your eFront calendar to those applications and have all your calendars in one place.

What you need to provide to Calendar applications is the URL of your eFront calendar feed. Visit the Calendar and click on the export button on the top-right side of the screen (1).

Select "Private address" (2) and copy the URL provided (3). This is the Calendar's feed private URL and should be provided with a Calendar app in order to import your events.

Anyone who has access to this URL will be able to view your events. Thus, if you believe that this address is shared by accident to people that it shouldn't be, you can reset it by clicking the "Reset address" button (4).

Have in mind though, that resetting this URL will invalidate any existing private feeds already configured to calendar applications. In this case, you should provide the new URL to the calendar application.

Google Calendar

1. Go to Google Calendar.
2. On the left side, find "Other calendars" and click the down arrow.
3. Select Add by URL.
4. Enter the eFront calendar's private address in the field provided.
5. Click Add Calendar. 

The calendar will appear on the left side under "Other calendars."
Note: It might take up to 12 hours for changes to show in your Google Calendar.

Outlook.com Calendar   

1. In Outlook.com, go to your calendar.
2. Click Import.
3. Click Subscribe.
4. Enter the eFront calendar's private address in the field provided.
5. Enter a name for the calendar (e.g. eFront Calendar events) and choose a color.
6. If you like, select a charm that will appear in every day that new events occur.
7. Click Subscribe.

Note: It might take up to 24 hours for changes to show in your Outlook.com Calendar.

Yahoo! Calendar

1. Go to Yahoo! Calendar
2. On the left side, find "Other calendars" and click the settings icon.
3. Select Follow other's calendar
4. Enter a name for the calendar (e.g. eFront Calendar events) and choose a color.
5. Enter the eFront calendar's private address in the field provided (iCal Address).
6. Click Continue.

Outlook App

1. In Outlook, Choose "Tools" and "Account Settings"
2. In the dialog box that appears, click on the "Internet Calendars" tab.
3. Click on the "New" link and enter the eFront calendar's private address in the field provided
4. Click "Add" when finished and enter a name for the calendar if you want.
5. Click "OK" when finished.

Thunderbird App
In order to import your calendar to Thunderbird, you need to install the Lightning Calendar Add-on that adds calendar functionality to Thunderbird.       
More details on what is Lightning Add-on can be found here.

1. If you have installed the Lightning add-on, create a new calendar by going to the File -> New -> Calendar.
2. On Locate your calendar window, select On the network.
3. Then select iCalendar (ICS) format and enter the eFront calendar's private address in the field provided (Location).   
4. Click the Next button to continue the setup.
5. Choose a name and a color for this calendar, and then you are done.