The Days Until Calculator is a simple countdown tool: enter any future date. And it tells you precisely how many days remain until it arrives, counted from today.

It also shows which day of the week your target date falls on. And if the date has already passed, it flips into a “days ago” count instead. It’s a handy way to keep track of upcoming deadlines. Exam dates, trips, birthdays, or product launches without doing the math yourself.