Crossed Days is a Notion countdown calendar that crosses off each day before a date you choose.
Set the target date with the pencil on the bottom right; that date is circled. The week can start on Sunday or Monday.
The widget keeps the target date in browser storage. Entries do not sync between devices or browsers, and clearing browser data removes them.
It works in the Notion app on phones too; give the block enough height. New to embeds? Add a widget to Notion. Blank or clipped? Try these fixes.