How to show notifier and stop action during specific times

I am trying to find a way to make a button work only during specific times of the day and on certain day. For example I only want to allow users to proceed after 5pm daily or/and before 10am daily but only on thursday or friday. If this isn't the case I would like to show a notifier and ensure they can't proceed? Any help would be greatly appreciated.

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see the documentation of the clock component and its methods here http://ai2.appinventor.mit.edu/reference/components/sensors.html#Clock

then try something and if you get stuck, post a screenshot of your relevant blocks

A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook   http://www.appinventor.org/book2 ... the links are at the bottom of the Web page.  The book 'teaches' users how to program with AI2 blocks.

There is a free programming course here http://www.appinventor.org/content/CourseInABox/Intro  and the aia files for the projects in the book are here:  http://www.appinventor.org/bookFiles  

How to do a lot of basic things with App Inventor are described here:  http://www.appinventor.org/content/howDoYou/eventHandling  .

Also do the tutorials http://appinventor.mit.edu/explore/ai2/tutorials.html to learn the basics of AppInventor, then try something and follow the

 Top 5 Tips: How to learn App Inventor

You will not find a tutorial, which does exactly what you are looking for. But doing the tutorials (not only reading a little bit) help you to understand, how things are working. This is important and this is the first step to do.

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