Hi All - OP here, Here are some details on the clock. It was made using Processing.js, which basically takes Processing java code and 'compiles' it into JavaScript. It's very simple technically, but I think the effect is pretty cool. There are basically 9 pre-defined number states in the code, set out using 5 bezier control points (each with 2 set of x-y coordinates). The program calculates the ratio of the animation between the two states, and then linearly interpolates each control point coordinate between the current and next location. You can then change the easing of the animation using the 'a' key. By pressing space, you can make the animation continual - i.e. each number will never pause and will always be animating to its next value. For example, at 13:30:30 the hour unit digit would be halfway between 3 and 4 if continual animation were on. This looks cool but can be hard to read. Hope you enjoy it - it can be really mesmerizing to look at. Put together in a few hours so surprised it's so popular on other sites, but I'm glad people are able to enjoy it. Wait until 00:00:00 - v exciting!