The popular name is "Berlin-Uhr" or "Mengenlehreuhr" ("set theory clock"), but it has little to do with set theory - it just displays hours and minutes in a sort of base-5 system. This is the Second Life simulation of the real existing clock.
History:
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There are infinite ways to show the time to people, and one of the stranger ways is used by the Berlin-Uhr(R), invented by Dieter Binninger. The clock was installed in 1975 for the first time at the Kurfürstendamm in Berlin-Charlottenburg near the subway station Uhlandstr.
In 1995 the clock was shut down, although in the years before it was not in proper condition, already. The running costs of this clock were around 5000 Euro per year. In 1996 the clock was moved next to the Berlin Europa Center in front of the tourist information, now sponsored by merchants within the center. With this the Europa Center has a second unusual clock besides of the often photographed water clock in the main hall. Where at the Kudamm the clock was activated on both sides, at its current location only one side shows the time. The other side is deactivated. In December 1999 the Berlin-750-Anniversary plate in front of the clock was removed. After 2000 the clock was renovated and got new colored glass with thick black frames, where the yellow glass got more like orange.
The Berlin-Uhr is based on the principles of quantity didactics and with this its the first of its kind. The time is calculated by adding the lit rectangular lamps. The top lamp is a pump which is blinking on/off every two seconds. In the upper line of red lamps every lamp represents 5 hours. In the lower line of red lamps every lamp represents 1 hour. So if in the first line 2 lamps are lit and in the second line 3 lamps its 5+5+3=13h or 1 p.m. In the third line with tall lamps every lamp represents 5 minutes. There are 11 lamps, the 3rd, 6th, and 9th are red indicating the first quarter, half, and the last quarter of the hour. In the last line with yellow lamps every lamp represents 1 minute.
Fast Description:
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The flashing yellow circle indicates the seconds, where bright yellow represents even and dark yellow represents odd numbers.
The first row from the top consists of 4 red fillets, each of which represents 5 hours. Multiply 5 by the number of lit fillets ( = H5)
The second row from the top consists of 4 more red fillets, each of which represents 1 hour. Add the number of lit fillets to H5 from above. This is the number of hours (in 24h system).
The second row from the bottom consists of 11 red and yellow fillets, each of which represents 5 minutes. Red fillets mark 15 minute intervals. Multiply 5 by the number of lit fillets, irrespective of red or yellow ( = M5)
The bottom row consists of 4 red fillets, each of which represents 1 minutes. Add the number of lit fillets to M5 from above. This is the number of minutes.
How do i set the correct timezone?
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You need to change the "Master" script. That means, you right-click the object and select edit in the pie menu. Open the script "Master" in the 'Content' tab.
Just uncomment (delete the '//') the line start representing your timezone and comment (add the '//') on the line start of all other timezones.
After you made all desired changes press the 'Save' button.
S u m m e r t i m e / D a y l i g h t S a v i n g T i m e
Please note, this time zones dont show summertime regulations. You need to adjust to your local summertime manualy, this is normaly done by selecting the next line. Do not forget to set the normal time back when summertime is over!!
The Chromachron
The default timezone is set to UTC, Greenwich Mean Time.
