Simple digital clock

@allObjects. You are right, 1 second noise at reset or power up (and even at not every reset or power up) is really not a big problem. So I wanted to kill it easy or to leave it as is. double write at startup seems to be easy enough to implement it. Sorry, the code looks strange and confusing. If you remove the double write (both of them) you will see no any changes most times even at power up/reset.
But if you send new code to clock every minute :) in dark room :)) it may be interesting to use the writes to remove bright noise.