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.

mormat

Scheduler Widget is a free WordPress plugin that will display an events scheduler component in your site.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/J794b-Kz1tA?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
The Scheduler Widget can be added in your pages or posts from the WordPress block editor
Features : 
– Four view modes available: day, week, month and year 
– Events can be displayed by groups (for instance : tasks by persons or reservations by rooms) 
– Filter hook to programmatically override the properties of the scheduler 
– Drag and drop support
Note: this widget renders best on a full width page.

Scheduler Widget

Add a Google-like scheduler to your WordPress site

Event Calendar / Scheduler vs Scheduler Widget