Makes sense, you clearly thought about this! From a world-building perspective I do have a follow-up question: 86.4k seconds is our definition of a second, but it is essentially a convention and there is no reason for it. In a society that throws out the hours and minutes, why did they keep our second? It seems like it would have made sense for them to define the day as 100k of some new (slightly smaller) unit. That could have given them 10 “hours” of 100 “minutes” of 100 “seconds”.
They are very busy charging an arm and a leg for crappy software with shit support.