I am using Blender to edit videos. I see strip time units listed with three colon separators, like: HH:MM:SS:??. So, what are those smallest units? 1/60 of a second? 1/100th of a second. Or should the third colon actually be a period to indicate a decimal point? I have this time: 02:18:46:29. Is that for 46 and 29/60ths seconds or 46 and 29/100ths of a second - 46.29? I could find no documentation on this or any way to control time representation in preferences. I've never see a time unit like this.