Today I attened a Pecha Kucha event. Pecha Kucha is a presentation style that you go through 20 slides, each for 20 seconds. I feel it is pretty challenging to make timing right. So I borrowed some code from the d3 polar clock made a timer for myself. This timer works great on the phone.
Here is the timer: wpc.github.io/pechakucha-timer.html.
Please leave some comments if you find it usefule.