I never explained directly here how I use the #DecimalWatch.
I am not often converting between decimal and standard time. I just look out for significant events for which I have learnt decimal equivalents, like wake up, kids to school, work start, lunch, work end, etc. It is also nice to track roughly where I am in the progress of a day. There are other time sources at home and the office when I need precision, for meetings I have a calendar. A travel app takes care of public transport times.