Google Calendar – a scheduler with a wide range of useful functions. The software enables to create a list of events in the indicated dates, mark their location on the map and invite friends to them. Google Calendar marks the to-do lists with the corresponding colors and sorts them by days or weeks. The software allows you to distribute the notifications and messages to all participants of the event. Also Google Calendar is able to automatically find a time in the schedule of a user to implement the objectives with regard to his employment.