[RFC] Sibyl: Time Series Analysis in Haskell

When looking at Sibyl.TimeSeries it seems that the concept of time is just any type t that has Unbox and Ord instances. Does that mean a time series is a collection of singular events along some totally ordered domain?

I work with time series a lot, and the two problems that arise most frequently are

1. Values associated with time intervals rather than singular time points, and finding intersections between those intervals. Hours, days, weeks, months…
2. Converting between time representations, when matching time series from different sources.

Only in the most regular scenarios can a time interval be represented by a single LocalTime, e.g. when the sampling is equi-distant and the time zone never changes. The implementation of Sibyl.Safe.TimeSeries.diff indicates that you are thinking exclusively about this scenario.