dhtmlx

An easy to implement event calendar plugin built on top of <a href="http://dhtmlx.com/docs/products/dhtmlxScheduler/" rel="nofollow ugc">dhtmlxScheduler</a> 
that provides an Ajax-based scheduling interface similar to Google Calendar. The plugin allows you 
to manage single or multiple user events, display any type of events and appointments, and put a list of the upcoming events on a side bar.
Users can add/edit/delete events on the fly and easily change event date and time by simply dragging the event boxes. 
You can set up different levels of permissions to people who will use the calendar: make the scheduler read-only or allow 
a group of users to edit the events through a web-based calendar interface.
The calendar can be configured to display events in Day, Week, Month, Agenda, Timeline view, as well as in any custom view. The intuitive admin panel 
makes it easy to customize the calendar to your needs. You can use the plugin as an event calendar or as archive calendar to display your blog posts archive (in this case it works in read-only mode).
Main Features
<ul>
<li>Day, Week, Month, Year, Agenda, Timeline Views</li>
<li>The ability to create a custom View </li>
<li>Ajax-enabled, intuitive interface</li>
<li>Drag-n-drop support to configure event date and time</li>
<li>Easy-to-customize</li>
<li>Single/multi-day events </li>
<li>Customizable time scale </li>
<li>Recurring events </li>
<li>Configurable access and edit rights</li>
<li>Upcoming events widget</li>
<li>Localization to more than 20 languages</li>
</ul>
What’s New in 3.0
<ul>
<li>Week Agenda View</li>
<li>Map View (integration with Google Maps)</li>
<li>Timeline View</li>
<li>Full day event</li>
<li>The ability to display event creator </li>
<li>Export to/from Google Calendar</li>
<li>Built-in export to PDF and iCal</li>
<li>WPMU support</li>
</ul>
Requirements
<ul>
<li>PHP 5.0 or greater</li>
<li>MySQL 4.0 or greater</li>
</ul>

Event Calendar / Scheduler

Event calendar plugin that allows you to add a nice-looking scheduler/planner with drag-n-drop interface, recurring events, Google Map integration.

Freemius

beat.k

Termin-Kalender is your easy monthly planner. This calendar app provides a clear, monthly overview to keep you organized.
<h3>Easy Termin-Kalender Calendar</h3>
VERSION 1.2 Lite
Plan your month with ease!
Monthly overview: Get a quick picture of your schedule.
<h3>Features:</h3>
<ul>
<li>Flexible categories: Customize labels for a clear organized schedule view</li>
<li>Add, edit, and move calendar entries directly</li>
<li>Multiple calendar views: Yearly, monthly, weekly, and list views</li>
<li>Add website links and images</li>
<li>Gutenberg Blocks for calendar and simple list in the Lite Version</li>
<li>Save to iCal, Google, Yahoo, and Outlook Calendar</li>
</ul>
<h3>Ideal for:</h3>
<ul>
<li>Small businesses, teams, personal use</li>
<li>Customer appointments, resource management, room bookings (and more!).</li>
<li>Simple setup & intuitive interface for a streamlined workflow.</li>
</ul>
Get organized today!
<ul>
<li>PRO: Recurring Appointments</li>
<li>PRO: To-Do list</li>
<li>PRO: Gutenberg block Request Form: Allow visitors to submit appointments or reservation requests.</li>
<li>PRO: Gutenberg List Block: Display specific category entries on your website.</li>
<li>PRO: Backup and restore</li>
<li>PRO: User rights management</li>
<li>PRO: iCal Feed for Google, Yahoo, Outlook, and other calendars</li>
<li>PRO: Enhanced Gutenberg Blocks</li>
</ul>
*PRO features require upgrade.
Termin-Kalender: Your all-in-one monthly planning solution.
<h3>Credits</h3>
This plugin uses the following libraries: 
Bootstrap: https://getbootstrap.com/ 
flatpickr: https://github.com/flatpickr/ 
Fullcalendar: https://fullcalendar.io/ 
rrule: https://github.com/jkbrzt/rrule 
Inspired by ajax-event-calendar from Eran Miller, a discontinued plugin, last updated in 2015 for WordPress 4.2 https://wordpress.org/plugins/ajax-event-calendar/#description 
My easy Termin-Kalender calendar is a complete code redo and enhancement, based on the most recent WordPress 6.+, Fullcalendar 6.+ and PHP 8.+ as of 2024.

Termin-Kalender


Late Beta works well so far. Before installing PRO, uninstall FREE and EXCLUDE the calendar page in caching settings, if you use a caching Plug-In and new calendar entries or changes does not show immediately. 


Late Beta works well so far

Termin-Kalender is your easy monthly planner. This calendar app provides a clear, monthly overview to keep you organized.

Event Calendar / Scheduler vs Termin-Kalender