Nice to see there is some around that thinks the way I do
After a period of time you will catch on to the method behind the madness.
The timer is only there as a guideline it's to give you a rough idea of how long is left.
2 day build is displayed as 2D23H59M To you & I it looks like 3days, but it is just counting down the 24hrs of first day of building, then it will chance to 1D23H59M the 1D will disappear once the timer is halfway down leaving you just hours and minutes.