What Counts as a Day? Arrival, Departure and Transit Days Compared

Schengen counts the day you arrive and the day you leave. The UK tax test counts midnights. Settlement and citizenship rules count only whole days away. Here is one stay counted all three ways, with 13 rules sorted by the method they use.

Last verified: September 2026

In short: there is no single definition of a day. Most visa limits and many tax tests count any part of a calendar day, so both the arrival day and the departure day count. Midnight tests such as the UK Statutory Residence Test count nights, so one travel day drops out. Absence rules for settlement and citizenship count only whole days away, so neither travel day is an absence. Airside transit is not an entry into the Schengen area and adds no days to 90/180.

Any part of a day: Arrival and departure days both count: Schengen 90/180, US Substantial Presence Test, New York, Canada 183-day, Armenia
End of the day: Only days that end in the country count, so one travel day drops out: UK Statutory Residence Test, Slovenia, Cyprus, Taiwan
Whole days away: The days you leave and return count as present: UK settlement and citizenship, US naturalization, Canada citizenship
Transit: Treated differently by every rule; several tests exclude short transit explicitly, and airside transit is not a Schengen entry

Three ways to count a day

Take one stay: you land at 23:30 on 1 March and fly out at 06:00 on 5 March, about 78 hours in the country. Every rule below counts it with one of three methods. The filled dates are the ones that count.

Any part of a day

Every calendar date your stay touches counts, so both travel days count.

12345

Arrive 23:30Leave 06:00

5 days

Schengen 90/180: the date of entry is the first day of stay and the date of exit the last. Days on a national long-stay visa or residence permit are left out.
US Substantial Presence Test: presence at any time during the day counts, except under 24 hours in transit between two places outside the US and regular commuting from Canada or Mexico.
New York: any part of a day is a day, except presence only to board transport out of the state or to pass through it.
Canada 183-day rule: each day or part of a day counts, except commuting days of US residents working in Canada.
Armenia: arrival and departure are full days, however few hours you were there.

Days that end in the country

A day counts if you are there at midnight, which is the same as counting nights. One travel day drops out.

12345

Arrive 23:30Leave 06:00

4 days

UK Statutory Residence Test: a day counts if you are in the UK at the end of it. A qualifying transit day is excluded, and the deeming rule can add days you were present but not at midnight.
Slovenia: presence at the end of the day counts; days only in transit are excluded.
Cyprus: arriving and leaving on the same day is a day in Cyprus; leaving and returning on the same day is a day outside.
Taiwan: the mirror image. The arrival date is excluded and the departure date included, so the same stay counts 2 to 5 March.

Whole days away

Absence rules for settlement and citizenship, seen from home. The days you leave and return are days at home.

12345

Leave homeReturn home

3 days away

UK indefinite leave to remain: only whole days abroad count, and an absence under 24 hours is not counted.
UK naturalisation: only whole days abroad count; leaving on 22 September and returning on 23 September is no absence.
Canada citizenship: only full days outside Canada are absences.
US naturalization: the days you depart and return count as days of physical presence.

So a count is never "the number of days I was away" in general. It is always the number of days under one named rule.

One trip, counted from both sides

London to Paris and back. You live in the UK and hold permission on a settlement route. You leave London at 07:00 on 1 March for Paris and return at 22:00 on 5 March. In the Schengen area that trip uses 5 days of your 90. For the UK indefinite leave to remain absence limit it is 3 days abroad, 2, 3 and 4 March, because the days you left and returned are not absences. For the Statutory Residence Test, 5 March is a UK day because you were home at midnight, and 1 March is not.

Taiwan's mirror-image rule only matters when a trip crosses the end of a tax year, but then it decides which year the day lands in. Keep exact dates, not just trip lengths.

Transit and layovers

"I was only changing planes" is not one answer either. What decides it is whether you passed through border control and whether the rule has its own transit exception.

Schengen. An airside connection in a Schengen airport, without passing border control, is not an entry into the Schengen area, so it starts no stay and adds nothing to 90/180. Nationals of some countries still need an airport transit visa to use the international transit area. If your destination is inside the Schengen area, you enter at the first Schengen airport, and that is your entry day.
UK tax. A transit arrival day does not count for the Statutory Residence Test if you arrive as a passenger, leave the next day as a passenger, and do nothing substantially unrelated to the journey in between. A hotel night and breakfast is fine; seeing friends is not.
US tax. International travelers clear US border control at the first US airport, or at a preclearance airport abroad, even when connecting, so there is no airside transit for immigration. For the Substantial Presence Test, a day is left out when you are in the US for less than 24 hours in transit between two places outside the US.
Slovenia and New York. Slovenia excludes days spent in the country only in transit. New York disregards presence solely to board a plane, ship, train or bus to a destination outside the state, or to continue a journey through it.

The layover guide covers airside and landside transit, and how to record a connection so it does not inflate a count.

How to count your own days

List every border crossing with its local date, the way your passport stamp or entry record shows it. Include day trips and connections where you passed border control.
Name the rule you are checking and find its method above: any part of a day, end of the day, or whole days away.
Apply that method trip by trip, then add up the days inside the rule's window: a rolling 180 days, a tax year, or a qualifying period.
Check the result against an official tool where one exists. The European Commission's short-stay calculator counts entry and exit days as the Schengen Borders Code does. The EU's Entry/Exit System stay checker reads your recorded crossings, but as of September 2026 it ignores time in the Schengen area that began before 10 April 2026, and until 6 October 2026 its answer may be unreliable for single- or double-entry visa holders who used an entry between 12 October 2025 and 9 April 2026.

Beyond the day count

The day-counting method is only the first step. Tax tests such as the Statutory Residence Test and the Substantial Presence Test also weigh ties, exceptions and treaty rules, and a residence permit or long-stay visa takes its days out of the Schengen count entirely. Settlement and citizenship rules add permitted absences and discretion. Use the method above to get the count right, then read the guide for the rule itself.

AtlasDays counts days, nights or whole days away, tracker by tracker

Log each trip once and every tracker counts it by its own method. The Schengen 90/180 Short-Stay Rule counts entry and exit days, UK Indefinite Leave to Remain counts only whole days outside the UK, and tax residency presets such as the UK's count nights. Save a layover as Transit and it adds no days anywhere.

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FAQ

Do the arrival and departure days count toward Schengen 90/180?

Yes. The Schengen Borders Code treats the date of entry as the first day of stay and the date of exit as the last, however late you arrive or early you leave. A trip from 1 to 5 March uses 5 days.

Does a layover count as a day?

It depends on the rule. An airside connection in a Schengen airport is not an entry and adds no Schengen days. The UK Statutory Residence Test excludes a qualifying transit arrival day, and the US Substantial Presence Test excludes less than 24 hours in transit between two places outside the US. Where you pass border control and no exception applies, the day counts like any other.

Why does my tax day count differ from my visa day count?

Because the rules use different methods. Schengen counts any part of a day, so both travel days count, while the UK Statutory Residence Test counts only days you end in the UK. The same four-night trip is 5 days for one and 4 for the other.

Official sources

Schengen entry-day and exit-day counting and the exclusion of long-stay visa and residence permit days are in Article 6(2) of the Schengen Borders Code, applied in the European Commission's short-stay calculator user manual; the caveats on the EU's stay checker are on the EES stay-check page. Airport transit through international transit areas is defined in the EU Visa Code, and the German Federal Foreign Office explains when a Schengen stopover means entering the Schengen area. HMRC's manual covers the midnight test, the deeming rule and transit days. Whole-day absence counting is set out in the Home Office continuous residence guidance and the Form AN guidance. The IRS explains days of presence for the Substantial Presence Test, CBP confirms that travelers clear CBP at the first port of entry, and the USCIS Policy Manual counts departure and return days as presence for naturalization. New York's rule is in its residency definitions and Nonresident Audit Guidelines. Canada's rules are on the CRA's deemed residents page and in IRCC's How to Calculate Physical Presence (CIT 0407). The Cyprus Tax Department sets out arrival and departure day counting, the Slovenian Financial Administration explains end-of-day presence and transit days, Taiwan's National Taxation Bureau explains computing the period of stay, and Article 25 of Armenia's Tax Code counts arrival and departure days as full days.

About this article: AtlasDays provides general information, not legal, tax, or immigration advice. Rules change and outcomes depend on your circumstances, so never rely on it alone: check the linked official source or ask a qualified professional.