When you’re writing your to-do list for the day at 10:45pm you can probably chalk it up as a day that’s gone off the rails.
I usually write my daily blog post at 8am, but it’s 11:35pm right now and I’m writing what should have been written 15 hours ago.
Bad day in terms of productivity, but I see it and I’m feeling it, and it will not spread into tomorrow.
A slow day can’t be made up by working late into the right. That simply destroys the start of the next day and drags the problems of today into tomorrow.