It's come up at least twice this week, where it would be nice to identify the modulo of a space. For example, when plotting against MLT, you don't want to draw a line from 23:59 to 00:01, because this is 2 minutes away, not 23h58m. Likewise when averaging data, you don't want to average 23:59 to 00:01 and get 12:00. I've thought of adding a QDataSet property to describe this quality of the data, and it should be considered further.
See https://sourceforge.net/p/autoplot/bugs/1593/.
Here's some fake data to illustrate.
Here's a better one: vap+inline:temperature=getDataSet('vap+hapi:http://jfaden.net/HapiServerDemo/hapi?id=Iowa+City+Conditions&timerange=2015-09-21+through+2015-09-29¶meters=Time,Temperature')&time=getDataSet('vap+hapi:http://jfaden.net/HapiServerDemo/hapi?id=Iowa+City+Conditions&timerange=2015-09-21+through+2015-09-29¶meters=Time')&(time)=synchronize(temperature,(time))&link(mod(time,'24hr'),temperature)&timerange=Sep+2015
See also https://sourceforge.net/p/autoplot/feature-requests/539/
https://autoplot.org/data/coastlines-low.zip/coastlines/asia-cil.txt is another example (make sure you turn on connecting lines)