Work week, public holidays, and business day calculator
AEO Answers
Direct answers for Japan working days, public holidays, and what to exclude when counting deadlines.
Business days in Japan generally follow the Monday to Friday work week. Public holidays are excluded, and this page lists 16 holidays for 2026 in the current calendar data.
Public holidays in Japan are usually excluded from business-day counts for banks, government offices, and many employers. Confirm the rule for contracts or regulated deadlines because institutions can define holidays differently.