What does the digital clock on some desks in School indicate? (AB2) Scott April 01, 2020 18:58 Please see the section "The digital clock" in the School article. Related articles School (AB2) What do the red exclamation marks on the Boosts screen mean? (AB2) The difficulty bar never says "ALL SYSTEMS GO!" (AB2) Letter Starvation (AB2) I want to start over (AB2) Comments 0 comments Article is closed for comments.