Back to the Future

Today I found a funny picture taken at the A.B.B.U.C. annual meeting on October 26, 2019. I was wearing my 1980's CASIO CA-851, as one should at a retro event. At some point, I was wondering about the date and pushed the date button and I was struck by surprise. It was the "THE DATE", the very date when Doc Emmett Brown and Marty McFly went back in time on 1985-10-26 in Back to the Future. So why was my watch doing that: Well when the watch was created in 1980, nobody thought it would be used after 1999. So they only used two digits for the year and hence 1999 is the last year you can set the clock date to. My solution to the problem is to use the perpetual calendar. I set the clock every new year to that year between 1980 and 1999 which uses the same sequence of weekdays. And for 2019 that was 1985. So I literally went "back in time" myself that day, to the year when the future was about to begin. Because in 1985 I bought my first computer :-)

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