Calendar Indicator: See Your Google Calendar In Ubuntu’s Tray [Linux]

Justin Pot 08-03-2012

google calendar in ubuntuClick one button in the tray and see what you need to do today. Calendar Indicator gives you quick access to your upcoming Google Calendar appointments, and doesn’t rely on any other software to get that information. This means you don’t need Evolution to see your appointments in the tray.


Evolution, the Linux answer to Microsoft’s Outlook, is no longer included by default in Ubuntu. There’s a reason for this – it was occasionally buggy, frequently slow and too complicated for new users to figure out. But it also integrated nicely into Ubuntu, especially when it comes to calendars. Clicking the clock brings up a calendar, as most Ubuntu users know. Clicking the clock when you’ve got your calendars set up with Evolution also brings up your appointments.

Calendar Indicator, sadly, isn’t integrated into the calendar like that; instead, it’s an icon in the tray you can click to see a list of upcoming appointments, and it only supports Google’s calendar server. But Calendar Indicator is lightweight, speedy and very easy to use, and Google offers the best calendar service out there.

Using Calendar Indicator

The first time you start Calendar Indicator you’ll need to enter your Google username and password. Do so and a calendar icon will be added to your tray; its number is that of the current day.

Click the icon and you’ll see your upcoming appointments:

google calendar in ubuntu


Oh man, I’ve got some manuals to edit. A list of upcoming appoinments is a great way to get yourself ready for the week ahead or month ahead, so this overview is great. Clicking the appoinments, sadly, does nothing.

If you’d like to see the days you’re free in the coming month, you can click the “Show Calendar” button to (oddly enough) show a calendar.

ubuntu google calendar

Bold days have appoinments; hover over such a day to see them in the tooltip.


There aren’t many options, but you can easily set the program to launch at boot and change the icon’s theme:

google calendar in ubuntu

It’s a simple application, to be sure, but it’s functional.

Installing Calendar Indicator

To install this program in Ubuntu you will need to add the “atareao/atareao” PPA. Not sure how to do this? You could check out Y PPA, a GUI tool for managing your PPAs. Y PPA Manage: A GUI For Managing Ubuntu PPAs [Linux] Do you want to avoid using the command line when installing bleeding edge software? Then manage your Ubuntu PPAs from a simple GUI with Y PPA Manager. Ubuntu users get their software from the Ubuntu... Read More Otherwise, just open up the Terminal and paste this code:


sudo add-apt-repository ppa:atareao/atareao

This will add the repository securely. Once you’ve added it, update your package manager and install “calendar-indicator“. If your Terminal is still open, you can do both those things with these two commands:

sudo apt-get update

sudo apt-get install calendar-indicator


Looking through the (Spanish) homepage for Atareao it seems this project is mostly for Ubuntu. This makes sense: it’s an indicator applet for Unity. So I can’t find installation instructions for other distros, but if you can, feel free to add them in the comments below.


This program has one major shortcoming – it doesn’t support multiple calendars. If you use Google Calendar for more than the default calendar, you’re out of luck (though I hope this changes in future versions!)

As always, I want to hear what you think. Is this indicator useful, or would you prefer integration into Ubuntu’s built-in calendar? Let me know in the comments below.

Related topics: Calendar, Google Calendar, Ubuntu.

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  1. Carl Lucas
    February 21, 2015 at 3:18 am

    I click on "show calendar" and nothing happens. Go back to the menu and "show calendar" is grayed out.

  2. Justin Pot
    February 16, 2015 at 3:31 pm

    Heven't used this one in a while, so I'm glad to hear it's still working!

  3. newbie
    February 16, 2015 at 2:24 pm

    Working really well with Ubuntu 14.04 and multiple canders

  4. Annoyed
    July 24, 2012 at 11:16 pm

    Does not work with ubuntu 12.04 in fact creates a number of fatal crashes. Please remove this article

  5. Robert Trenary
    June 3, 2012 at 1:59 am

    can't log in after first install ... ubuntu 12.04 .. logged in once but when next login doesn't recognize Google login and doesn't give me chance to provide info again

  6. Robert Trenary
    June 3, 2012 at 1:57 am

    i installed your app the first time ... got log in to google ok .. now when i start it up all i get is the complaint about login failure and no way to enter a new one ... how do i restore the Google login info ?

    • Justin Pot
      June 4, 2012 at 10:53 pm

      Sorry you're having problems. Can you not get to the "login" tab of the preferences?

  7. bob
    April 30, 2012 at 4:21 am

    doesn't work. how the hell do you set the user name and password. I just get errors saying password and/or username are incorrect please try again. more worthless garbage for ubuntu

    • Justin Pot
      May 3, 2012 at 8:24 pm

      You can set your username and password in the "Preferences". The "login" tab can help.

  8. Eduard Gotwig
    April 12, 2012 at 8:29 pm

    I like to see that for the original date menu indicator. Any tips?

    • Justin Pot
      April 12, 2012 at 8:34 pm

      Set up Evolution. That's the only way to do this, sadly.

  9. HIPPO
    March 17, 2012 at 1:08 am

    Calendar Indicator displays it with reference to Google Calendar.
    If you don't use Google Calendar, Calendar Indicator shuts itself down several seconds later.
    Or if you don't make a future appointment even if you use Google Calendar, Calendar Indicator shuts itself down several seconds later.

  10. hemanthg4
    March 14, 2012 at 8:01 pm

    What about people who use the gnome interface?

    • justin
      March 28, 2012 at 2:26 am

      I don't know as much about Gnome, but I think you'll have to stick with the built-in Evolution support. Sorry.

  11. K4nz4k1g4w4
    March 8, 2012 at 11:19 pm

    don't work in 11.04

    • jhpot
      March 9, 2012 at 3:40 pm

      That's too bad. Generally, if you want bleeding edge software on Ubuntu, you need to be using the latest version.

  12. Dss
    March 8, 2012 at 8:38 pm

    good work!