Tools

Work out how many of your 90 days you have used in the rolling 180-day window, and whether a planned trip stays within it.

Work out the exact date your permission to stay runs out, from the allowance your visa or entry actually grants.

Count exactly how many days a stay runs past its permitted departure date, and how many are left if it has not.

Check your passport against a destination's actual validity requirement — not a one-size-fits-all six-month rule.

Count the days of a trip the way border authorities do, with both the arrival and departure days included.

Find the days, weeks, months and years between any two dates — in either direction.

Compare a time across several places at once, with the day change made obvious.

Add up your own trip costs and see the total per person, per day and per person per day.

Work out who owes whom after a shared trip, without losing a single unit to rounding.