GeekDad Puzzle of the Week – The Bright Clock

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After getting a new alarm clock for our master bedroom, I determined that the clock is entirely too bright. It kept me awake for most of the night, as every minute it changed the time and burned a new pattern in to my retinas. As I laid there, unable to sleep, I started thinking “Is this it? Is this the brightest time I am going to see? Can it get any worse?”

Public enemy number one.
My nocturnal nemesis, as seen in daylight

This week’s puzzle of the week comes in two parts. The first part is straightforward – what times, as presented on the clock’s LED face, are the brightest and the dimmest? Assume that each segment gives off the same amount of sleep-depriving light, and that the clock represents civilian-time (and not 24-hour time.) The second part of this week’s puzzle is a little more challenging – what 90 minute periods (i.e., from 2:04 to 3:33, etc.) represent the clock’s dimmest and brightest periods? That is, when do I have the best shot at shuteye, and when should I not even try?

Please note that the email to which you should send your entries has changed. To be considered for a chance at this week’s $50 ThinkGeek gift certificate, please send your entry to GeekDad Central, now at contact.geekdad@gmail.com. Good luck, and please wish me luck on my quest for REM.

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