Personal Record Of Time

My Personal record of time was drawn on my arm over the span of the whole day. I would every hour guess what time it was, and if i got it right i would mark a green slash on my arm, and if i got it wrong i would mark a red slash. After the whole day i got about 4 right and 12 wrong. This showed me how far off my internal clock was off every hour. During the project I was extremely aware of the measurement of time.