I have a rather big and intimidating goal and being the procrastinator that I am I tend to wait until the very last moment of the day to do it. Which would be less of a problem if the goal wasn’t to work multiple hours on my university project each day.
So I create an earlybird goal that would make me do some of those hours before 1pm. That helped but added more housekeeping.
Eventually I would then take a “break” directly at 1pm and that break would then last until the end of the day just in time for me to do the remaining hours of the goal.
Yeah. Nobody could have seen that coming 
So I created another goal that would charge me with $5 if I did more than x of those hours after 6pm. Allowing for some buffer to amass. And that worked actually really well but added an even bigger amount of manual housekeeping.
I tried setting the deadline earlier but that created its own share of problems. So what’s my proposed solution? I shall automate this. At the end of the day (hrr hrr) all that is needed really is to be able to specify a timeframe in which a goal can have datapoints added.
That should help you, me and others.