Encrypted Timezones

On the Subject of Encrypted Timezones

It’s B:RG somewhere in the world.

This module displays 12 lights in a ring around a central screen. Each light is an RGB display, meaning its possible colors are red, green, blue, yellow, cyan, magenta, white, and black (see Appendix W0MB0-C0MB0 for reference). The middle screen is constantly cycling a one-letter display.

Once decrypted, the 12 lights represent an analog clock displaying a time in the current city, whose name is being cycled on the middle screen letter by letter. There are no gaps in between separate words or the last letter and first letter of the city name in this cycle.

Clicking the middle screen will change the middle screen’s cycle, turn all of the lights black, and make the lights selectable. The screen will now display the goal city. Encrypt the goal city’s time into the lights and press the middle screen again to submit. The module will solve if all 12 lights are the correct color.

The module will completely reset upon a strike.

Decrypting The Current City’s Time

Make note of the RGB components of each light on the module. Follow the table below to decrypt the lights. A position should be toggled if the row’s condition is true and the serial number contains a character found at the top of that column. When toggling a color, if the color component is present in that component’s position, then remove it. Otherwise, add it to the color. For more info on RGB color mixing, see RGB Combination.

If...	..then toggle...	...in the positions...
If...	..then toggle...	L/T/Y /4/8	J/O/P /0/5	A/B/C /1/2	D/M/Z /3/7	E/G/N /6/9
The serial number contains a vowel.	Red	2/4	3/7	9/10	11/12	1/6
The serial number does not contain a vowel.	Green and Blue	8/10	3/12	6/7	1/9	4/11
There are at least 3 battery holders.	Red and Blue	5/8	1/11	4/6	2/10	3/12
There is at least 1 D battery.	Blue	3/12	4/5	2/7	1/6	8/9

If...	..then toggle...	...in the positions...
If...	..then toggle...	L/T/Y /4/8	J/O/P /0/5	A/B/C /1/2	D/M/Z /3/7	E/G/N /6/9
There are more lit than unlit indicators.	Red, Green and Blue	8/10	1/2	4/7	3/12	5/11
There are more unlit than lit indicators.	Blue	3/9	4/7	5/12	1/10	2/11
There are an equal amount of lit and unlit indicators.	Red and Green	3/10	2/4	1/8	11/12	7/9
There is a prime number of solvable modules on the bomb.	Green	5/11	9/10	2/12	1/8	3/4
There is a parallel or serial port present.	Red	7/11	5/9	4/6	2/12	3/8
There is a DVI-D or RJ-45 port present.	Green	3/6	2/11	5/7	8/9	10/12
There are no needies on the bomb.	Red and Blue	7/12	1/3	4/5	9/11	8/10
There is a Timezone module on the bomb.	Red, Green, and Blue	3/8	4/5	2/10	7/9	1/12

All of the decrypted lights will now have a single base color with the lights representing the hour and minute hand toggling a different color. To determine which light shows the hour hand, use the base color as the row and the indicator count as the column to determine which component the hour hand toggles. The light that shows the minute hand toggles a different component.

	0-2 Indicators	3+ Indicators
Red	Green	Blue
Green	Blue	Red
Blue	Green	Red
Cyan	Red	Blue
Magenta	Red	Green
Yellow	Blue	Green
White	Blue	Red
Black	Red	Green

Converting the Time to the Goal City

Take the time of the current city and convert it from the timezone of the current city to the timezones of the goal city.

The cities with their respective timezones are listed below:

Amman, Jordan (UTC +3)
Anchorage, United States of America (UTC -8)
Baku, Azerbaijan (UTC +4)
Brasilia, Brazil (UTC -3)
Bratislava, Slovakia (UTC +2)
Bucharest, Romania (UTC +3)
Cairns, Australia (UTC +10)
Cape Town, South Africa (UTC +2)
Casablanca, Morocco (UTC +1)
Detroit, United States of America (UTC -4)
Hanoi, Vietnam (UTC +7)
Islamabad, Pakistan (UTC +5)
Jakarta, Indonesia (UTC +7)
Lima, Peru (UTC -5)
Los Angeles, United States of America (UTC -7)
Madrid, Spain (UTC +2)
Managua, Nicaragua (UTC -6)
Mexico City, Mexico (UTC -5)
Monrovia, Liberia (UTC +0)
Nairobi, Kenya (UTC +3)
Nuuk, Greenland (UTC -2)
Omsk, Russia (UTC +6)
Oslo, Norway (UTC +2)
Perth, Australia (UTC +8)
Philadelphia, United States of America (UTC -4)
Pyongyang, North Korea (UTC +9)
Reykjavik, Iceland (UTC +0)
Salt Lake City, United States of America (UTC -6)
Shanghai, China (UTC +8)
Sydney, Australia (UTC +10)
Taipei, Taiwan (UTC +8)
Tokyo, Japan (UTC +9)
Toronto, Canada (UTC -4)
Winnipeg, Canada (UTC -5)

Encrypting the Goal City’s Time

Notate the new time using the same colors for the hour hand, minute hand, and base used to notate the current time. This is what will be encrypted using the method below. Follow the instructions in order as listed.

If there is a lit SND or unlit CAR indicator, turn all even-numbered positions magenta, regardless of initial color.
If the minutes hand for the goal city was on hour positions 3, 6, 9, or 12, toggle green in all prime-numbered positions.
If the goal city does not contain an E in its name, toggle green on all lights.
If the goal city contains an I in its name, toggle blue on all lights.
If the UTC for the goal city is an even number, toggle red in all odd-numbered positions.
Shift all of the lights clockwise X spaces, where X is the last digit of the serial number.
If the serial number does not have exactly one vowel in it, toggle red and green on the positions whose numbers are multiples of 4.
If there is a Stereo RCA port on the bomb, toggle green and blue on positions 3 through 8.
If there are no Stereo RCA ports on the bomb, toggle blue on positions 9 through 12.
If the goal city’s UTC is higher than -3, toggle red on positions 1, 2, and 8.
If there is The Clock or The Stopwatch on the bomb, toggle red, green, and blue on positions 6 and 12.

This is your encrypted display, which should be submitted to solve the module.

Setting the Lights

Once selectable, the lights respond to presses differently depending on the time they are pressed. The second to last digit of the timer determines which component is being toggled upon a press of a light:

0 or 3: Red
1 or 4: Green
2 or 5: Blue

Press the middle screen to submit the currently displayed lights.