This web part refreshes the content of the page regularly according to the specified time interval.

The behaviour of the web part depends on the configuration of the web part zone in which it is placed.  If the zone's Use update panel property is enabled, only the content of the zone will be reloaded. If this property is disabled, the entire page will be refreshed.

Help URL: http://devnet.kentico.com/docs/webparts/index.html?Timer_overview.htm