What are some alternatives?
When comparing OfficeCalendar and Time.ly, you can also consider the following products
Google Calendar - Spend less time managing your day & more time enjoying it
Teamup Calendar - Cloud-based calendaring using capability URL, application developed in Zurich, Switzerland.
CalReply - CalReply is a Calendaring platform that enables TV networks and businesses to enable fans and viewers to subscribe to event schedules.
Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Tockify - Customizable web calendars that blend into your site
iCal - In Calendar on your Mac, subscribe to calendars published or shared by others.