Common questions
The 90/180 rule, and this product
The questions people ask most, answered without hedging. Where the answer is "we do not do that", it says so.
The rule itself
What is the 90/180 rule?
If you are not an EU, EEA or Swiss national, you may spend up to 90 days inside the Schengen area in any 180-day period without a visa. The 180 days are not a fixed block: they are counted backwards from whichever day you are asking about.
Does the clock reset on 1 January, or after I leave?
Neither. There is no annual reset and there is no reset for going home. What happens instead is that individual days expire: a day you spent 180 days ago falls out of the window today and becomes available again. That is why your allowance can go up while you are sitting at home doing nothing, and it is the single most misunderstood part of the rule.
Does the day I arrive count? What about the day I leave?
Both count, in full. Landing at eleven at night and leaving at six the next morning is two days, not one. A Friday-to-Monday weekend is four days.
Which countries count towards it?
The Schengen area, which is not the same list as the European Union. Ireland is in the EU and not in Schengen. Norway, Iceland, Switzerland and Liechtenstein are in Schengen and not in the EU. Monaco, San Marino and Vatican City are not members but have no controlled border, so days there count anyway.
Is Andorra in the Schengen area?
No — and this is the one people get wrong most often, because it sits between two countries that are. It operates its own border controls, and days spent there do not count towards your 90.
What about Bulgaria and Romania?
Days spent there have counted since 31 March 2024, which is nine months before checks at their land borders were lifted on 1 January 2025. If you spent time there in 2024 and have been counting from 2025, you have more days used than you think.
What happens if I overstay?
That is a matter for the authorities of the country concerned, and the consequences range from a note on your record to a fine or a ban on re-entry. We cannot tell you what will happen in your case, and anybody who tells you they can is guessing. What this product is for is not arriving there by accident.
Using MyStayDays
Do I have to enter every trip I have ever taken?
Only the ones in the last 180 days affect today's answer, so that is the minimum. Adding more gives you a longer history to look back at, and makes the projections further ahead meaningful.
Can I check a trip before I book it?
Yes — that is the point of it. Enter the trip with the dates you are considering and it is assessed exactly like one you have already taken. If it puts you over, you will be told by how much and what the latest legal departure date would be.
Can I track more than one person?
Yes. Each traveller is assessed separately against their own nationality, passport and travel, because two people on the same trip genuinely can have different answers. One traveller is free; more than one is what the paid plan covers.
Do I have to give you my passport number?
No. The passport itself is optional, and if you do add one the number is optional too — the issue and expiry dates are what the validity rules need. If you do enter a number it is encrypted before it is stored.
Does it work on a phone?
Yes. It is a website rather than an app, built for a phone screen first, and it follows your device's light or dark setting. There is nothing to install and nothing to update.
Trust, and the limits
Is this legal advice?
No. It is a calculation over the travel you record and the rules as published, and it is not connected to any border system. The decision at the border belongs to the officer standing at it. Always check with the authorities of the country you are travelling to.
How do I know the dates and rules are right?
Every accession date and rule parameter is stored with the legal instrument it comes from and the date a person last checked it, and the calculation is tested against an independently written reference implementation on every build. What has not yet been done is a direct comparison against the official EU short-stay calculator using real itineraries. That is planned, and until it is finished this answer will keep saying so.
What about ETIAS and the Entry/Exit System?
Not covered. Those timelines have moved repeatedly, and building a compliance product around dates that keep changing would do more harm than leaving them out. When they are settled and implemented, they will be added as rules with sources, like everything else.
Is my data encrypted?
Passport and travel document numbers are encrypted with AES-256-GCM before they are written to the database, with a key kept separately from it — a stolen copy of the database does not contain them. Broader questions about how the service is hosted and operated belong in the privacy policy, which names every field we store rather than summarising it.
Can I delete my account?
Not from the interface yet. You can delete travellers, trips and passports at any time, but removing the account itself means asking us — and we will, properly and without asking why. A button for it is on the list.
Find out where you stand.
About two minutes: who is travelling, one trip, and your answer. No card, and nothing to install.