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Transit countries can also check passports
Do not check only the final destination; transit entry rules may matter too.
Passport date and entry source navigator
Calculate date intervals, then verify nationality-specific rules in the official destination source.
Passport date math + official sources
This is not legal or entry advice. Nationality, destination, transit, and visa status can change requirements.
Passport validity checks
Frequently asked questions
Is 6 months always enough?
No. Country exceptions and visa conditions can apply, so verify official sources.