I just ran across an amusing bug in the system that runs the front panel display on my FTS-4065A Cesium Standard. You can enter the date and time and then have a display of day:hour:minute:second on the screen. But it wouldn't accept the year. I discovered that you can't enter a year later than '16'. Okay, so what happens on Dec. 31, 2016 when the date rolls over? Why, the program crashes, of course! It only affects the display and a push of the reset button quickly restores sanity. As a work-around, I back-dated the setting to 2006 which is the latest year that has the same calendar as 2017. Ah, the joys of running old equipment! :) Ed