A live weekend countdown, running down to Friday at five. Once the weekend actually arrives the counter flips and tells you how much of it remains before Monday morning — which is either motivating or sobering depending on the hour.
Where the weekend starts is a choice
Friday at five is the convention here, but shift patterns, four-day weeks and countries with a Friday–Saturday weekend all move it. What matters is having a fixed marker to plan against; the argument for treating midweek as the real planning point is in planning your week around Wednesday.