StayDays

Days outside counter for Japan PR, naturalisation and UK ILR

Enter your trips and the counter adds up the days you spent outside the country over the years that matter for your application.
For Japan it shows the 2026 permanent residence guideline wording next to your totals; for the UK it checks every 12-month period against the 180-day rule.

This is a day counter, not legal advice. It does not predict approval or refusal. Before you decide when or whether to apply, check with a qualified adviser: a 行政書士 or the authorities in Japan, and an OISC-regulated immigration adviser or solicitor in the UK.

Count your days outside

Paste many trips at once (CSV or spreadsheet)

Your trips (oldest first)
DepartureReturnDaysIn periodCheckNoteAction

Dates are calculated inside this tab and never sent to any server. They stay in this browser (localStorage) only if you tick the save box.

How to use it

  1. Pick a rule set. Japan permanent residence looks back 10 years, Japanese naturalisation 5 years, UK ILR 5 years and UK Long Residence 10 years. You can change the number of years.
  2. Set the reference date. Use your application date or planned application date. Counting goes back from this day. Blank means today.
  3. Add your trips. One at a time, or paste many lines from a spreadsheet as departure,return,note. Leave the return date empty if you are still abroad.
  4. Read the results. Totals, the longest trip, a table by year and a timeline. The Japan PR set adds the half-year and two-years-six-months comparison; the UK sets show the highest 12-month total and any period over 180 days.
  5. Keep or delete. Download a CSV or JSON backup. On a shared computer, press "Delete everything" when you finish.

The official wording the counter uses

Japan: permanent residence guideline, section 2-5(6)

申請時点において、原則として引き続き１０年以上の期間本邦に在留しているかを考慮要素とし、（中略）また、これらの期間については、基本的に本邦に居住していることが求められることから、申請時点から過去１０年以内において、合理的な理由なく、一回の出国で半年以上不在とした期間がある場合又は通算して２年６月以上不在とした場合は原則として消極評価をします。

In English (our translation, not official): within the past 10 years from the time of application, if without a reasonable reason there was a period of absence of half a year or more on a single departure, or absences totalling two years and six months or more, this is in principle assessed negatively. Section 6: the revision applies to applications made on or after 1 April 2027.

Source: Immigration Services Agency of Japan, 永住許可に関するガイドライン (revised 1 October 2026) (checked 2026-10-31)

UK: Appendix Continuous Residence CR 3.1

To meet the continuous residence requirement, the applicant must not have been outside the UK for more than 180 days in any 12- month period (unless CR 3.2., CR 3.3., CR 5.1. or CR 5.2. applies, and subject to CR 3.4.).

Source: GOV.UK, Immigration Rules: Appendix Continuous Residence (checked 2026-10-31)

You must only include whole days when calculating an applicant’s absences. Part day absences, less than 24 hours are not counted.

Source: Home Office, Continuous residence caseworker guidance (version 10.0, published 8 October 2026) (checked 2026-10-31)

What the counter cannot know

Your data

Travel history is personal. This page sends none of it anywhere, and the counter pages carry no advertising scripts. Saving is off until you tick "Save in this browser". See the privacy policy.

Frequently asked questions

Does this tell me whether I will get permanent residence or ILR?

No. It counts days and shows them next to the published wording. Japan and the UK both decide each case on all the facts, and both allow for reasons such as unavoidable absences. For a decision, speak to a qualified adviser (in Japan a 行政書士, in the UK an OISC-regulated adviser or solicitor).

Which rule does the Japanese PR check use?

Section 2-5(6) of the Immigration Services Agency guideline revised on 1 October 2026: within the past 10 years from the application, a single absence of half a year or more, or absences of two years and six months or more in total, without a reasonable reason, are in principle assessed negatively. Section 6 says the revision applies to applications made on or after 1 April 2027.

How does the UK 180-day check work?

Appendix Continuous Residence CR 3.1 says the applicant must not have been outside the UK for more than 180 days in any 12-month period. The tool checks every 12-month period that ends on a day in your qualifying period and reports the highest total and any period over 180 days.

Are the departure and return days counted?

For the UK, no: the Home Office guidance says to include only whole days, and part-day absences of less than 24 hours are not counted. For Japan, the guideline does not say, so the tool lets you choose and starts with the cautious option that counts both days.

What does Long Residence change?

Under CR 3.3, absences that started before 11 April 2024 are checked against a 548-day total and a 184-day single absence limit instead of the rolling 180 days. Choose the UK Long Residence rule set to see both.

Is there a day limit for Japanese naturalisation?

The Ministry of Justice describes the residence condition as living in Japan continuously for five years or more up to the application, and publishes no day limit for trips abroad. The tool counts days for this rule set but does not compare them with a limit.

Where is my travel data stored?

Only in this browser tab. Nothing is uploaded. If you tick "Save in this browser", the trips are kept in localStorage on this device until you press "Delete everything".

Can I import a list of dates?

Yes. Paste one trip per line as departure,return,note from a spreadsheet or CSV file. Dates can be written as 2024-03-05 or 2024/3/5. Lines that cannot be read are listed so you can fix them.

Guides