Alright guys this is basically my Redstone Clock magnum opus. After ditching my computer science midterm to build a clock in Minecraft, I have come up with this beauty and monstrosity, the likes of which I have never made before. There's a clock, a timer, and a stopwatch. It's practically an iPhone.


How to Use

Using the clock is quite simple. All you have to do is select one of the 3 modes (clock, stopwatch, timer), toggle the "pause | resume" lever to the on position, and watch the numbers change. Press the "reset" button to set all digits to 0. The buttons on top and below the digits increase and decrease the digits respectively, and each digit affects the one to its left (decreasing the right-most digit at 00:00:00 results in 99:99:99, and vice versa). To make sure the clock doesn't break, only adjust the digits when the clock is paused.

Clock mode: Simulates a 24h digital clock. Select the "clock" mode, set your desired time using the buttons, and resume the clock. The real-time clock increments every second, and can be accurate for long periods of time assuming the clock isn't unloaded, and there is no lag (which this machine shouldn't cause). The in-game clock turns off the last pair of digits as they are not used, and increments the minute hand 3 times every 50 gameticks, which is precise to how in-game time is calculated. The clock will also auto-reset itself to a high degree of accuracy at midnight. Note that as with the v3 Redstone Clock, auto-reset will not work if you sleep in your world. The clock auto resets itself to 6:00 in the mornings, and therefore will work if you decide to sleep in your world. As with the Redstone Clock v3.1, if it is raining and you do not sleep, it will break. To disable auto-reset, there is a switch behind the board, at the middle top.

Stopwatch mode: Self-explanatory. Reset the clock, select the stopwatch mode, and resume to get a stopwatch you can use to record races or something. Maximum time is 99 hours, after which it will flip back to 0. Increments every second.

Timer mode: Also self-explanatory. Set your desired time (max 99 hours), and resume to have the clock decrement every second. At 0, the clock will play a noteblock plinging ringtone. To snooze, pause the clock.

If the clock mode is selected when the hour hand is larger than 23, it will auto reset itself back to 00.

Selecting a mode deselects all other modes. You can deselect the already selected mode to turn the clock completely off.

All modes are independent - i.e. the in-game auto reset system won't activate if you're in real-time, or using the stopwatch/timer. Unfortunately, they all still use the same digits - the clock would be much, much more complicated if each mode had its own, saved digits.


How it Works

The main logic of the clock is provided by the orange, comparator circuits (I should probably credit this guy!). These circuits provide a redstone signal output power that can be increased and decreased easily, making them a perfect candidate for a 7-segment display. The pink circuits then decode this output to a digit, which is then saved and displayed by the cyan and green circuits.

The gray circuits facilitate changing the outputs of the orange circuits. It does the "carrying" of digits, and allows the user to individually increase/decrease each digit.

The control panel uses the white, timing circuits to control the functionalities of the clock. These circuits include the clock circuits for the in-game timer, and real timer. The purple circuit changes the behavior of the white circuits, allowing it to be paused, or the timers changed between in-game and real.

The rest of the circuits include yellow, which detects when the clock reaches 0 for the timer mode. Red handles the in-game clocks and the morning resets. Black resets the entire clock.

Most of these circuits don't exactly look very clean. In fact, they're janky as hell. More experienced redstoners out there are probably not proud. But everything apart from the counter and decoder are my own design. I'm cool with it.

That's about it. I'll probably make a YouTube video about this in the future. Although with my upload schedule of one video every half a year that is hard to say. Remember to stay hydrated folks. And leave diamonds.

v3.1 clock: https://www.planetminecraft.com/project/redstone-clock-v3-1-cute-100-precise-digital-clock-auto-syncs-to-in-game-time/
v3 clock: https://www.planetminecraft.com/project/redstone-clock-v3-pistonless-mechanism-syncs-to-game-time/
v2 clock: https://www.planetminecraft.com/project/the-redstone-clock-v2-am-pm-set-time-and-game-real-time-modes/
v1 clock: https://www.planetminecraft.com/project/updated-redstone-clock-with-set-time-and-ampm/


Block-by-Block Tutorial

Part 1: https://youtu.be/2K6n2Q_RauU
Part 2: https://youtu.be/bdbFxoMFws8
Part 3: https://youtu.be/nGg0r1KNbJ4