This is a mini example of creating clock geometry and tell where should hour, minute, and second hands to go with query of system time.
This is a tool set I create in Maya using Python. The video shows couple examples of some handy tools can be use in production. The first example is locking camera attributes. With one click, this tool can find camera transform nodes and shapes other than the default “top”, “side”, “front” and “persp”. It will have a prompt dialog to ask whether if you want to lock the camera one by one.