wp-chd-developer

The plugin features a straight forward user interface in the WordPress dashboard to add/edit and delete events and set some options. 
Events allows you to list Events on a seperate page or in the sidebar, or both. Here you can list Old (archived) events future events and if you want, events happening today. 
When you create or edit an event you can set it to be archived. So that it remains listed. Optionally non-archived events are automatically deleted one day (24 hours) after they expire. Many more options are available and Events is completely customizable to your theme in an easy and flexible manner.
Features
<ul>
<li>Widget for themes that support it</li>
<li>Separate page for events</li>
<li>Completely customizable layout</li>
<li>Multi language</li>
<li>Link events to pages/posts</li>
<li>Set a start and end time (duration) for events</li>
<li>Set locations for events</li>
<li>Show events in your sidebar</li>
<li>Archive events</li>
<li>Edit existing events</li>
<li>Auto remove old, non-archived events</li>
<li>Unlimited dateformats to show events dates</li>
<li>Options page</li>
<li>Set a date and time to the minute</li>
<li>Set a message to show before and another one to show after the event occurs</li>
<li>User level restriction</li>
<li>Management page</li>
<li>Set amount of events to show in the sidebar</li>
<li>Un-install option to remove the database table</li>
<li>And more, see for yourself…</li>
</ul>

Events Handler – The Events Plugin

Events Handler enables to manage events and future happenings and show them on your wordpress site.

Eric Daams

<a href="http://pippinsplugins.com/sugar-event-calendar?ref=3769" rel="nofollow ugc">Sugar Events Calendar</a> is an Event Calendar plugin for WordPress that allows you to easily manage events on your website.
This add-on to Sugar Events Calendar allows you to add a Ninja Forms form to your event pages, so that you can easily add registration forms. If you have one of Ninja Forms’ payment gateway add-ons installed (<a href="http://ninjaforms.com/downloads/stripe/?ref=19" rel="nofollow ugc">Stripe</a> or <a href="http://ninjaforms.com/downloads/paypal-express/?ref=19" rel="nofollow ugc">Paypal Express</a>), you can even take payment for event registrations.
This plugin requires <a href="http://pippinsplugins.com/sugar-event-calendar?ref=3769" rel="nofollow ugc">Sugar Events Calendar</a> and <a href="http://ninjaforms.com/?ref=19" rel="nofollow ugc">Ninja Forms</a>.
This plugin does not require any configuration. Once you have installed it, you will be able to add a Ninja Form when editing your event.
Requirements
<ul>
<li>Sugar Events Calendar</li>
<li>Ninja Forms</li>
<li>WordPress 3.7+ (will probably work with earlier versions, but support will not be provided for older installations)</li>
</ul>

Sugar Events Calendar – Ninja Forms Add-on

Add registrations forms for your Sugar Events Calendar events using Ninja Forms.

Events Handler – The Events Plugin vs Sugar Events Calendar – Ninja Forms Add-on