LuigivdB

This timed widget allows you to specify a set time and days when the textwidget should be displayed. For example: you set the start time to ’11:00′ and the end time to ’13:00′. The widget will only be visible between these set times. You can also select on which days the widget should be visible.
The easiest way to time your textwidgets.
Translation in dutch (more coming soon).

Timed Textwidget

Easily display a textwidget on a set time and/or day.

Danny159

After installing and activating the plugin you can use the shortcode [schedule]. You can pass upto 4 parameters, the date and the time to show the content and the date and time the content will expired and disappear from your page or post. You have to pass at least one parameter from the scheduled or expired.
Sample –
[schedule on=’2014-12-01′ at=”10:01″ expon=’2014-12-01′ expat=”13:15″] 
the content you want to hide here 
[/schedule]
The 4 parameters are “on”, “at”, “expon” and “expat”. 
“on” accepts a date, until that date is arrived the content will be hidden. 
“at” accepts a time. Time has to be set in 24hrs format. (date should be yy-mm-dd if you only pass time) 
“expon” accepts a date, the content will disappear from the page on this date. 
“expat” accepts a time. Time has to be set in 24hrs format. (date should be yy-mm-dd if you only pass time)
The time is compared with your blog’s time zone settings, if you set your time zone to local time zone it would be easy for you. Go to “General” settings of your wordpress dashboard, under “Time Zone” you can set the time zone you prefer.
Shortcodes will also run inside this shortcode!!

Scheduled Content

Scheduled content enables you to schedule portions of a post or page and/or set an expiery date for that content.

Timed Textwidget vs Scheduled Content