Opencart Deal Timer
This plugin will enable admin to add products to specials list by providing discounts for a particular time period. Discounts will be added in terms of groups of products each of which will have its own name, start date, end date, discount % and priority. This plugin will also provide an interface on catalog, displaying a timer with a given title like a strip on footer. Also, admin may choose to show timer on product listing and/or modules on each layout, position and sort order..
List of Features-
If there is a feature you want on your Opencart site, chances are that an Opencart plugin will allow you to do it, if you don't find any such plugin you can always contact us for your custom plugin development requirements.