Alphanumeric GPS Wall Clock

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Contributors: Nate
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Introduction

The GPS Alphanumeric Clock is the clock you never have to set! Using UTC time and date we are able to parse out the local time using a Gregorian date calculator and some rules for US daylight savings time (DST). Calculating what day of the week it was on June 7th of 1983 is actually a bit of a challenge. Similarly, figuring out if we were or were not is DST for any given year was not as easy as you might think. This tutorial gives a good breakdown of how to calculate day of the week from any date and a simple way to make your clock set itself (assuming you know the date).

GPS wall clock

Suggested Reading

To better understand this project, you should be familiar with the following topics: