Looks great!

>>Do the number of rects equal the current number?
Yes at all times.
When the cells have a value greater than one it is displayed on the cell.
If you pause the video at any point and add up the cells it will always equal the sum of the starting seeds.

I'm waiting for someone to say that it this is old news but have not found something similar yet.

An Arduino clock would be pretty cool.

Thanks for taking a look at it.

I made a simple clock to make it easier for you but I understand you wouldn't have any problems anyway  

1. // millis() and second() not used
2. int hr; // hour
3. //
4. void setup () {
5.   size (screen.width, screen.height);
6.   stroke (255);
7.   smooth ();
8.   textSize(148);
9.   noCursor();
10.   noStroke ();
11.   strokeCap (SQUARE);
12.   fill (244);
13.   // textMode(SCREEN);
14. }
15. //
16. void draw () {
17.   background (0);
18.   //
19.   boolean bNight=false;
20.   String mn_Text ="";
21.   String hr_Text =""; 
22.   //
23.   int  mn = minute ();
24.   hr = hour () ;
25.   //
26.   if (hr>12) {
27.     // hr = hr-12;
28.     bNight=true;
29.   }
30.   //
31.   //  mn_Text = (mn) ;
32.   //  hr_Text = (hr); 
33.   text ( "" + nf(hr, 2) + ":" + nf(mn, 2), 180, 434);
34. }
35. // ------------------------------------------------------------------------

Thanks I have a clock now but in Javascript and have one in development in processing.

At 9:45 you can't count that many dots or remember that many patterns too fast so will try a display with each number shape on its own: (9) : (4)(5)

That sounds great!