|Initial release||April 13, 2006|
|Operating system||Android, iOS|
Google Calendar is a time-management and scheduling calendar service developed by Google. It became available as a limited beta release on April 13, 2006, and exited the beta stage in July 2009. It is available as a web application and as mobile apps for the Android and iOS mobile operating systems.
Google Calendar allows users to create and edit events. Events have a set start time and stop time, with an option for an "All-day event". Users can enable a "Recurring" functionality with optional parameters for frequency. Users can add a color to an event for recognition or to distinguish the event from others. Users can optionally set notifications, with options for type (email, mobile push notification) and time. Locations can be added for easy understanding of an event's place. Events are viewable in different types of setups, including day, week, month, or schedule. Users can invite other people to events; for other Google Calendar users, the event becomes visible in their calendar, and for non-Google Calendar users, an email will have options for "Yes", "No", or "Maybe". Privacy settings allow the user to define the levels of public visibility of the entire calendar or individual events. Although the calendar defaults to showing users event times in their local time, users can specify a different time zone for an event. Users can enable or disable the visibility of special calendars, including a Birthdays calendar, that automatically retrieves dates of births from a user's Google contacts and displays the dates on a yearly basis, and a Holidays calendar, a country-specific calendar featuring dates of special occasions.
Additional features include "Events from Gmail", where Google Calendar automatically adds event details obtained from new email messages received in Gmail; "Reminders", which serve as to-do activities that are displayed alongside calendar events; and "Goals", where users specify a goal and Google Calendar automatically finds the optimal times to work on the goals, including using machine learning to dynamically adapt the "Goals" schedule over time. Google Calendar also offers "Smart Suggestions", with recommended titles, locations, and contacts for events.
The user interface of Google Calendar was originally designed by Kevin Fox. Google Calendar allows the user to import events from a different calendar application, with notable support for both Microsoft Outlook and Apple iCloud calendars.
In August 2015, Google added an "Events from Gmail" feature, where event information from a user's Gmail messages are automatically added to Google Calendar. The feature, enabled by default, will also update events with new information based on new email messages received, such as flight delays.
In December 2015, Google added a "Reminders" feature, enabling users to add to-do activities as Reminders, with those activities being displayed in the calendar alongside regular events. Google also states that Reminders can automatically add additional, helpful information to Reminders based on known details, such as numbers or addresses. Reminders serves as a cross-service feature, meaning Reminders also show up in Inbox by Gmail, Google Now, and Google Keep.
In January 2016, Google added "Smart Suggestions" to Google Calendar on the mobile apps. Smart suggestions recommend titles of events, as well as locations and contacts. At the same time as Smart Suggestions, Google also added holiday calendars for 54 new countries, adding up to a total of 143 country-specific holiday calendars.
In April 2016, Google added a "Goals" feature. Goals are activities the user wishes to complete. After answering brief questions, including "How often?" and "Best time?", Google Calendar will automatically "find the best windows to pencil in time for that goal", with the calendar adapting to the user's schedule over time, such as re-scheduling a goal activity if an event is added that causes a direct conflict with the time of the goal. The feature was expanded in January 2017 with support for Google Fit and Apple Health, to see the progress made towards completing a goal.
For users of Google's G Suite service, a subscription service for business, education and government customers offering additional functionality, Google Calendar has a "Find a time" feature that can suggest the best time for an event with a group of people, based on available times for each individual in the group. Additionally, the feature can also schedule the meeting room.
- "Google Calendar". APKMirror. Android Police. January 20, 2017. Retrieved January 20, 2017.
- "Google Calendar". iTunes Store. Apple Inc. January 5, 2017. Retrieved January 20, 2017.
- Sjogreen, Carl (April 13, 2016). "It's about time". Official Google Blog. Google. Retrieved January 10, 2017.
- Glotzbach, Matthew (July 7, 2009). "Google Apps is out of beta (yes, really)". Official Google Blog. Google. Retrieved January 10, 2017.
- "Google Calendar". Google Play. Google. Retrieved January 10, 2017.
- "Google Calendar". iTunes Store. Apple Inc. Retrieved January 10, 2017.
- Lenssen, Philipp (June 2, 2008). "Kevin Fox of Gmail & FriendFeed on User Experience Design". Google Blogoscoped. Retrieved January 10, 2017.
- "Import events to Google Calendar". Calendar Help. Google. Retrieved January 10, 2017.
- Kyreiev, Oleksandr (December 7, 2010). "Event time zones in Google Calendar". Official Gmail Blog. Google. Retrieved January 10, 2017.
- Sullivan, Mark (September 27, 2010). "Is Google Calendar Time-Zone Challenged?". PC World. Retrieved January 10, 2017.
- "Save time planning business travel and more with events from Gmail on Google Calendar". G Suite Updates. Google. August 25, 2015. Retrieved January 10, 2017.
- Protalinski, Emil (August 25, 2015). "Gmail will now automatically add Google Calendar events for emails with flight, hotel, restaurant, or ticket info". VentureBeat. Retrieved January 10, 2017.
- Umapathy, Vijay (December 7, 2015). "Add to-dos to your Google Calendar using Reminders". The Keyword Google Blog. Google. Retrieved January 10, 2017.
- "Smart suggestions in Google Calendar for event titles, places and people―now in more than 30 new languages". G Suite Updates. Google. January 28, 2016. Retrieved January 10, 2017.
- "54 new country-based holiday calendars added to the Google Calendar app". G Suite Updates. Google. January 28, 2016. Retrieved January 10, 2017.
- Ramnath, Jyoti (April 12, 2016). "Find time for your goals with Google Calendar". The Keyword Google Blog. Google. Retrieved January 10, 2017.
- Shu, Catherine (April 12, 2016). "Google Calendar's newest feature uses machine learning to help you actually accomplish your goals". TechCrunch. Retrieved January 10, 2017.
- Goerisch, Florian (January 5, 2017). "Track your New Year's fitness goals with Google Calendar". The Keyword Google Blog. Google. Retrieved January 10, 2017.
- Vincent, James (January 5, 2017). "Google Calendar update makes it easier to track your New Year's fitness goals". The Verge. Retrieved January 10, 2017.
- Asara, Federico (September 29, 2016). "Save time with smart scheduling in Google Calendar". The Keyword Google Blog. Google. Retrieved January 10, 2017.
- "Smarter meeting scheduling in Google Calendar on the web". G Suite Updates. Google. January 19, 2017. Retrieved January 20, 2017.