WebCalendar!

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. »

Kin Calendar is a simple yet connected calendar, developed as a Sunrise replacement.

An offline calendar without any other calendar integration. You can easily create recurring events and setup reminders, it can also display week numbers.

BEAUTIFULLY DESIGNEDDigiCal’s diary planner and organizer provides a clear and beautiful overview for your events and appointments.• Conveniently switch between 7 calendar views (day, week, week agenda, month calendar, text month, year and list view in portrait and landscape mode).• The slick dark theme allows for better visibility in low-light settings and night mode.• Event keyword image matching available in all 27 languages!• 6 highly customizable widgets with different theme styles and views: (FREE: list, day, day list, day grid widgets; PREMIUM: 2 extra widgets –text month and month calendar widget)• Intuitive navigation between days, weeks and months with zoomable day and week view. »

MemoCalendar.net is a light-weight and easy-to-use online calendar like a usual memo calendar on the wall. Behind every day a small note can be deposited. MemoCalendar.net is free and without registration (login) usable.

CalendarWiz offers everything organizations need in one calendar. Do it all in one application with our shared calendar features, website plugins, room & facility scheduling, and mobile app. Ideal for education, churches, business, government, non-profits and clubs. Our mission is to provide a low cost online calendar service that is easy to install, customize and use. Free email support included with all plans.

Unlike other calendar programs, Teamup does not require any user account. No signup, no login. Access to Teamup Calendar is as simple as opening a calendar link in your web browser. The calendar links can be shared with as many users as needed. These links are so called capability URLs and look like this: http://teamup.com/ksc5e84a987da08a35/ . Teamup makes group calendaring easy, especially with its powerful sharing capabilities. Learn more how Teamup is different.

Zoho Calendar is a free online calendar application that helps you to track your appointments and meeting schedule, send invitation and track RSVP's, share and publicize your calendars. You can aslo access your Zoho Calendar from mobile phone.

Calbird let’s you set your available times and creates a meeting link that you share to your invitee. They can then book a time to your calendar in one click.

No back-and-forth emails, no double booking and only a few seconds to schedule an appointment with you. It's idea is simple: you create your calendar, set your availability and then share it with our clients or co-workers, who can easily schedule an appointment. Thanks to the integration with all major calendars and time-zone synchronization, we can be sure that everything goes smoothly.

MineTime is a free, modern desktop calendar app. Connect all your calendar services and let MineTime's Scheduling Intelligence help you optimize your time.MineTime works natively with Google Calendar, Outlook.com, Microsoft Exchange and Office 365: this means you can organize all your calendars directly in MineTime.

Flowh starts as a complete calendar solution then adds a social layer and a robust set of tools and techniques to turn calendars into an effective marketing force.

wtplan (web terminal planner ) helps you manage a calendar. The calendar can be managed from a command line interface and/or a web interface. The calendar data is stored in a simple text file. wtplan integrates with git to make backup and synchronization between multiple computers convenient.