Time to values

Feature request for simplification of geting and working with values no mater what are they.

We have value X taken now
we draw graph from value X each 5 min, cool we have after 10 min 2 dots
but we colect this value from 24 hours
Will be more logcal to draw value of X by adding (X-24"Y") /where Y can be Sec, Min, Hour, Day/
And graph for 24 hour’s apear
Now each integration need to do that, with is extra procesing of data.