When does a stay start and end for day-count purposes?

Most practical ledgers use calendar dates of physical presence in the country. If you land at 11 p.m., many frameworks still count that calendar day; some use a midnight split. Choose a rule, write it down, and apply it to every stay.

Multi-country days (morning in A, evening in B) usually assign the day to where you slept. If you truly need hour-level precision, extend your process with notes—but most residency tests still reduce to days.

Remote work from a country usually means you are present there even if your employer is elsewhere. The ledger reflects geography; employment law and payroll are separate topics.

Consistency beats theoretical precision you cannot maintain on the road.