Makoto

Have you ever posted the dates of seminars, workshops, lessons, etc. on your website or contact form and then forgot to update them or left them posted when they were full?
This plugin solves those problems and makes schedule management easier by providing a block, a shortcode, and a form tags for Contact Form 7. 
It only supports displaying dates in a list format, and is intended for people who want a simple date display rather than a complex calendar-type schedule.
The features provided by this plugin are as follows
Schedule management 
* Multiple dates can be managed using your own post type. 
* Due dates can be specified as relative days or dates. 
* Customizable date format 
* Customizable day names. 
* You can set the content to be displayed when there are no dates to display. 
* There are three options for handling dates that are expired. 
 * Do not display 
 * Strikethrough 
 * Labeling 
* There are three options for handling dates and times that are full. 
 * Do not display 
 * Strikethrough 
 * Label display
Block/Shortcode 
* Customizable color and layout in the sidebar of the block editor 
* Customize the text and background color of the date and time. 
* Customizable text and color for labels. 
* Select multiple layouts for the schedule 
* A shortcode can be customized same as a block by setting attribute values.
Form tags for Contact Form 7 
* Provides pull-down menu for selecting dates. 
* Tags can be inserted with a button from the form editor. 
* The pull-down menu will automatically hide expired or full dates. 
* The text of the first line of the pull-down menu can be set.

Hassle-Free Date List

This plugin adds a block, a shortcode, and a contactform 7 form tag that displays a list of dates. Dates that are due will automatically be hidden or  …

Paul Newman

A simple but effective Calendar plugin for WordPress that allows you to manage your events and appointments and display them to the world on your website. The Plus is that Two seperate calendars may be used. Also a smaller displayed version of the Calendar to better fit into page or post content. 
This can be used as a drop-in replacement for the original Calendar plguin.
Features:
<ul>
<li>Monthly view of events</li>
<li>Mouse-over details for each event</li>
<li>Events can have a timestamp (optional)</li>
<li>Events can display their author (optional)</li>
<li>Events can span more than one day</li>
<li>Multiple events per day possible</li>
<li>Events can repeat on a weekly, monthly (set numerical day), monthly (set textual day) or yearly basis</li>
<li>Repeats can occur indefinitely or a limited number of times</li>
<li>Easy to use events manager in admin dashboard</li>
<li>Sidebar function/Widget to show todays events</li>
<li>Sidebar function/Widget to show upcoming events</li>
<li>Lists of todays events can be displayed in posts or pages</li>
<li>Lists of upcoming events can be displayed in posts or pages</li>
<li>Comprehensive options panel for admin</li>
<li>Modifiable CSS using the options panel</li>
<li>Optional drop down boxes to quickly change month and year</li>
<li>User groups other than admin can be permitted to manage events</li>
<li>Events can be placed into categories</li>
<li>A calendar of events for just one of more categories can be displayed</li>
<li>Categories system can be switched on or off</li>
<li>Pop up javascript calendars help the choosing of dates</li>
<li>Events can be links pointing to a location of your choice</li>
<li>Full internationalisation is possible</li>
<li>Comaptible with WordPress MU</li>
<li>Two seperate Calendars can be setup and used</li>
<li>Calendar can be full-size or small size to fit into page or post content</li>
<li>Drop in replacement for original Calendar plugin</li>
</ul>

Calendar Plus

A simple Calendar plugin for WordPress that allows 2 seperate calendars. This can be used as a drop-in replacement for the original Calendar plugin.

Hassle-Free Date List vs Calendar Plus