> org-mode thinks I finished it for 'today' because it's after 0AM and > schedules it for 'tomorrow'. This way, I'll forget it for one day. > > Is there a simple day to say: "I finished this task yesterday" without > me having to manually change every date in the tree, the PROPERTIES > drawer, and in the Logbook?
Is the org-extend-today-until variable what you're searching for ? (Assuming you don't do anything past midnight you don't consider to be done the day before.)