Calendar by Apple Inc. 11.0

Manage your schedule. Synchronize the current time and date with the official calendar, place markers indicating special dates and deadlines, check the remaining time, etc. Organize the scheduled activities according to their type, create multiple calendars.

Keep track of your busy schedule and share it with others using Calendar. Create separate calendars - one for home, another for school, a third for work, and so on. See all your calendars in a single window or choose to see only the calendars you want. Calendar lets you create invitations using information from Contacts, update your guest list, keep track of responses, and receive the latest status information. When you or another Mac user receives a Calendar invitation via Mail, it’s automatically added. Calendar also works with iCloud, Yahoo!, and Google. And when you use iCloud, every Calendar edit you make on your Mac automatically appears on your iPad, iPhone, and iPod touch. So no dinner dates are missed, no meeting goes unattended, and no anniversary is forgotten.