Days Left is a Notion widget that shows how many days are left in the month, with a small progress bar.
There is nothing to set beyond colours, fonts and size. It updates each day.
It reads the date from your device’s clock, so there is nothing to enter and nothing to sync between devices.
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.