I really wish someone could resuscitate Javelin (it "Understands the Arrow of Time" to quote the old ads). Where you can create a variable and define its time

I really wish someone could resuscitate Javelin (it "Understands the Arrow of Time" to quote the old ads). Where you can create a variable and define its time period: is it a monthly value, a daily value, a quarterly value, and so on -- and then simply chart, compare, add or subtract values without having to jump through hoops or manually try and push values into groupings. Javelin was the 1984 PC Magazine product of the year but there doesn't seem to have been anything since that works that way.