Is it a problem coming into Japan with a tourist visa before the work visa start date?
yes, it is a problem entering before your visa date, that is why consulates put dates on visas, and furthermore, one may not change tourist visa into work visa, the procedure are not the same; here are infos for you: A visa is NOT required for UK or Irish passport holders who wish to enter Japan for a period of six months or less for the following purposes: # Sightseeing, recreation, amateur sports, visiting relatives, inspection tour, participation in unpaid lectures or meetings, study, attending a conference, business contact or other similar activities. Journalists travelling to Japan for a short business trip do not require visas.# On arrival at immigration in Japan, such a passport would be stamped for a stay of 90 days. This period of stay may be extended for a further 90 days upon application to an immigration office once inside Japan, but approval is at their discretion. # On entry to Japan a traveller should possess a fixed-date, confirmed return or onward journey ticket, and
