Japan treats your arrival date as day 0. Count from the following day through the date you leave Japan. The practical formula is departure date minus arrival date: arrive January 1 and depart January 15, and your intended length of stay is 14 days.
That answer feels counterintuitive because a travel itinerary displays 15 calendar dates, January 1 through January 15. Japan's official visa guidance is more specific: the sample application published by the Consulate-General of Japan in Sydney says to write the exact number of days from the day after arrival to the departure day and gives the same January 1–15 example as 14 days.
This guide explains how to enter that number consistently on a visa application or Visit Japan Web, how it differs from hotel nights and visa validity, and what to do when your trip approaches a 15-, 30-, or 90-day limit. It is general planning information, not an immigration decision. The landing permission granted by Japanese immigration is the controlling record.
Official information last checked: September 1, 2026.
The Formula Japan Uses
Use this calculation:
Intended length of stay = Japanese departure date − Japanese arrival date
The arrival date is excluded. Every full calendar day after arrival is counted, including the date on which you depart.
| Arrival in Japan | Departure from Japan | Intended length |
|---|---|---|
| January 1 | January 8 | 7 days |
| January 1 | January 15 | 14 days |
| May 1 | May 16 | 15 days |
| May 1 | July 30 | 90 days |
The time of day does not create a fractional day. Landing at 08:00 and landing at 23:30 produce the same arrival date for this calculation. What changes the answer is crossing midnight: a flight scheduled to leave at 00:30 uses the new calendar date.
The legal foundation is Japan's general rule of initial-day exclusion. Article 140 of the Japanese Civil Code says that when a period is provided in days, the first day is not included unless the period begins at midnight. Official Japanese consulates apply that principle explicitly to visa stay calculations.
Three examples that catch real planning mistakes
International connection after midnight: You land at Haneda at 22:30 on September 1, then leave Japan for Seoul at 00:20 on September 4. The Japanese arrival date is September 1 and departure date is September 4, so the intended length is three days—not four calendar labels and not two hotel nights.
Domestic flight before international departure: You fly Sapporo to Tokyo on October 20 and stay near Narita, then fly overseas on October 21. The domestic flight does not end the Japanese stay. Use October 21 as the departure date.
Same itinerary, rescheduled arrival: Your original ticket lands May 1, but the airline moves arrival to 00:15 on May 2 while departure remains May 16. The intended stay changes from 15 days to 14 days. Recheck every document after the airline confirms the new schedule.
Counting the arrival and departure dates inclusively is the most common mistake. January 1 through January 15 touches 15 calendar dates, but the official intended length is 14 days because January 1 is not counted.
A Step-by-Step Calculation
1. Use the dates in Japan, not your home time zone
Write the calendar date on which you actually expect to pass through immigration in Japan. A flight leaving Los Angeles on May 1 may land in Tokyo on May 2. May 2 is the arrival date.
For departure, use the date your international departure is scheduled to leave Japan. If you take a domestic flight to Tokyo on June 10 but leave Japan internationally on June 11, June 11 is the departure date.
2. Exclude the arrival date
Treat arrival as day 0. The following date is day 1. If you land on May 1, May 2 is the first counted day.
3. Count through the departure date
The day on which you leave is counted. For a May 1 arrival, May 16 is day 15. A traveler admitted for 15 days could therefore plan to depart on May 16 under the date-counting rule, although building no disruption buffer is unwise.
4. Check the answer against every document
Your visa application, schedule of stay, flight reservation, accommodation plan, invitation documents, and any cover letter should tell the same story. A minor formatting difference is less important than a contradiction—for example, writing “14 days” while attaching a schedule that departs 20 days after arrival.
5. Recalculate after a flight change
Moving an outbound flight from 23:30 to 00:30 adds a calendar day. Moving the arrival across midnight changes the count too. Update the intended duration and any affected schedule before submission when possible; if your application is already being processed, follow the embassy or consulate's instructions rather than altering documents informally.
You can check the date difference and your nationality's ordinary-passport exemption in the Japan Visa Calculator. It uses the same arrival-excluded calculation, but it cannot replace a decision by a Japanese embassy or immigration officer.
Intended Stay, Nights, and Itinerary Days Are Different Labels
Travel sites use several reasonable counting systems. Problems begin when one label is copied into a field that uses another system.
| Label | January 1 arrival, January 15 departure | What it measures |
|---|---|---|
| Intended length of stay | 14 days | Day after arrival through departure |
| Hotel nights | Usually 14 nights | Check-in nights before checkout |
| Calendar dates shown on itinerary | 15 dates | Both arrival and departure displayed |
| Full sightseeing days | Often 13 | Days between travel-heavy arrival and departure |
Hotel nights often equal the official stay length, which is why “nights” can be a useful cross-check. It is not the source of truth. You could spend the first night on an overnight ferry, stay airside during a connection, or book a hotel through the morning after a late flight. Always calculate from immigration dates.
The official Ministry of Foreign Affairs visa application form asks separately for “Intended length of stay in Japan” and “Date of arrival in Japan.” A schedule of stay normally lists the arrival and departure activities as dated rows. The duration field is the date difference; the schedule can still show both endpoint dates.
What to Enter on Visit Japan Web
Visit Japan Web asks foreign visitors for arrival information and an intended length of stay as part of the immigration procedure. Enter the same duration you would put on the visa form: exclude the arrival date and count through the planned departure date.
Before submitting:
- Use the arrival date in Japan shown by the airline, not the date your flight begins abroad.
- Use your international departure date from Japan.
- Confirm that your accommodation and contact information cover the actual itinerary.
- If your departure changes, edit the planned entry/return information and display a fresh 2D code.
Our Visit Japan Web step-by-step guide covers the rest of the immigration and customs workflow. Visit Japan Web is a convenience tool; it does not grant a longer stay or override the landing permission in your passport.
How to Report Previous Stays
The visa form also asks for “Dates and duration of previous stays in Japan.” Use the same calculation for each trip.
A clear entry looks like this:
4 April 2024–15 April 2024 (11 days)
Do not guess from photos or hotel emails if you can check a better record. Use passport entry and departure stamps where available, old boarding passes, airline accounts, or an official travel-history record. Automated gates and passport changes can make stamps incomplete, so reconcile more than one source if the dates matter to the application.
If the form has limited space, follow the local mission's sample. Some missions ask for only the most recent visits; others may request a separate sheet or a fuller travel history. The Ministry of Foreign Affairs sets the national form, but the Japanese embassy or consulate handling your application can publish local document instructions.
Write the dates and duration in a simple, auditable format. Do not invent an exact date to fill a gap. If a record is genuinely uncertain, ask the mission processing the application how it wants the uncertainty explained.
Visa Validity Is Not Your Period of Stay
Three different periods are commonly confused:
Visa validity
This is the window during which an issued visa can be used to seek entry. The Ministry of Foreign Affairs visa FAQ explains that a single-entry visa is generally valid for three months and becomes invalid after it is used. That does not mean every holder may remain in Japan for three months.
Duration or intended length
This is the number of days requested or printed for a stay, such as 15, 30, or 90 days. It is counted from the day after arrival.
Landing permission and period of stay
Immigration examines you at the port of entry. The Immigration Services Agency's explanation of landing procedures makes clear that the immigration inspector grants landing permission, including a status of residence and period of stay. A visa is one part of seeking entry; it is not the final permission to remain.
Check your landing permission immediately after passport control. If it differs from what you expected, ask an immigration officer before leaving the controlled area rather than relying on an online calculator.
Calculating the 15-, 30-, and 90-Day Boundaries
The arithmetic is the same for every day-based period:
- 15 days: arrival date + 15 calendar days
- 30 days: arrival date + 30 calendar days
- 90 days: arrival date + 90 calendar days
For example, arrival on May 1 makes May 16 the 15th counted day, May 31 the 30th, and July 30 the 90th. Leap years and month lengths are handled by counting calendar dates, not by treating a month as 30 days.
Your nationality, passport type, passport features, travel purpose, and any registration condition determine whether a visa exemption applies at all. Read how long you can stay in Japan without a visa before using a 15-, 30-, or 90-day assumption.
A cancellation or delay that pushes departure past midnight may move you outside the authorized period. For a long visit, plan at least a few days inside the boundary and keep airline, insurance, and immigration contact information accessible.
Common Edge Cases
Overnight flights
Use the local Japanese dates. If your ticket leaves Japan at 00:20 on October 11, your departure date is October 11 even if you reach the airport on October 10.
Flight delays and cancellations
Your original itinerary does not automatically protect you after the permitted period ends. If disruption threatens an overstay, contact the airline and the Immigration Services Agency promptly. Do not wait until after the deadline to explain it.
Side trips to another country
Leaving Japan ends that particular stay. Re-entry is a new examination and normally starts a new period if landing is permitted. Repeated short exits are not a guaranteed way to live in Japan as a tourist; immigration can examine your purpose and travel pattern on every arrival.
Paid work, study, or long stays
The ordinary tourist calculation does not determine eligibility for paid activity, study, or residence. Those purposes may require a visa and a different status of residence even when the calendar stay is short.
An extension beyond 90 days
Nationals covered by certain bilateral arrangements may be able to apply in Japan for an extension from 90 days to a total of up to six months. It is an application, not an automatic 180-day admission. Check the current MOFA exemption notes and Immigration Services guidance before making plans.
A Safer Pre-Submission Checklist
- Confirm the Japanese arrival and departure dates from the latest flight booking.
- Subtract arrival from departure; do not count arrival as day 1.
- Make the duration match the schedule of stay and accommodation plan.
- Check the correct visa or exemption rule for your ordinary passport and purpose.
- Verify passport-specific conditions, not nationality alone.
- Recalculate after any flight change across midnight.
- Keep a buffer inside the maximum period.
- Insure the entire trip through the planned departure date.
- Confirm the landing permission after arrival.
Travel insurance dates should cover every planned day in Japan plus any relevant transit and disruption period under the policy terms. Our Japan travel insurance comparison explains the differences between fixed-trip cover and longer-stay products; always read the current policy wording before buying.
Official Sources Used
- Ministry of Foreign Affairs: Visa Application Form to Enter Japan
- Consulate-General of Japan in Sydney: Sample Visa Application Form
- Ministry of Foreign Affairs: Visa FAQ
- Immigration Services Agency: Procedures for Entry into Japan
- Japanese Law Translation: Civil Code Articles 138–143
Because visa instructions can vary by jurisdiction and personal circumstances, follow the latest instructions from the Japanese embassy or consulate responsible for where you live.
