I remember walking around my home city on the morning of 1/1/2000 and like a half of public digital clocks in the streets were showing invalid dates or just err

I remember walking around my home city on the morning of 1/1/2000 and like a half of public digital clocks in the streets were showing invalid dates or just errors, including the one specially put there for the NY celebration count-down and pompously named "The Millennial clock".