What do you do when your internet is out?

In my place, there is a day in a year the hindu's celebrating Nyepi or Silent day. For 24 hours, there is not allow to turn on light, all ISP shut down the services, No TV Program, No allow to get out from house, and in my experience, that is the best day in a year, where you can sleep, meditate, or do whatever without disturbance.