What are the units for CeleryScript values time_offsets and coordinates?

Hi. I’ve been working with a few friends on a Python program that sends CeleryScript directly to the FarmBot. We want to be able to set the scale the user wants to work at, and translate times into time offsets, but we don’t know the units for sent CeleryScript (e.g. coordinates are in millimetres, time_offsets are in milliseconds or something).