Learning to tell the time is one of the first important life skills any of us tackles, but the Albert Clock makes the tried and true hands method pointless because it forces you to calculate the time. It’s a digital clock that mounts easily to the wall, but actually telling the time is going to require you to do some math calculations. Oh yeah, and there are four different difficulty levels depending on your threshold for pain. Take 8:31 a.m. for instance. At Level 1 it’s displayed as 4+4 hours 32-1 mins. Level 2 is 2×4 hours 58-27 mins. Level 3: 23-15hours 1+5x6mins. And finally, Level 4: 9/3+5hours 5×8-9mins. We’re not saying the math is incredibly difficult, but remembering PEMDAS prior to coffee in the morning when you’re scrambling to figure out if you’re late for work will absolutely keep you on your toes. The sleek Albert Clock is built with an MDF base and hand-painted with a multi-layer matte laquer in Scholar Red, Lucid White or Concrete Grey.