Using this rule, users can configure widgets to be shown only on a specific timeframe. Using options start time user can configure from which hour widget will be active, and using option end time when user will stop to be shown to the visitors.
This is useful when your website has last hours deals popup widget or any other type of promotion widget.
Also in this rule possible to configure the timezone, of start and end time. For example, if the timezone is set to +2:00 GMT and in this timezone right now is Friday 20:00, and the widget is configured to be shown from 19:00 until 21:00. And incoming visitor has timezone +4:00 GMT, and in his timezone is 22:00 o'clock, the widget will not be shown to him.