営業日数の算出テクニック、労働基準法、関数活用法、年間カレンダーに関する専門記事。
Master NETWORKDAYS formulas, pandas custom business offsets, and numpy vectorized busday_count algorithms with ready-to-use code examples.
How substitute days, bank holiday roll-forwards, and statutory in-lieu rules differ across the US, UK, Germany, Japan, and Australia.
How SEC T+1/T+2 settlement cycles, carrier transit windows, and SLA business day countdowns operate under real-world calendar constraints.
Learn the formal algorithms and edge cases behind business day computation, weekend overlap elimination, and non-working day arithmetic.
A comprehensive global breakdown of statutory, bank, and regional holidays across the US, UK, Canada, Australia, Germany, France, Japan, and more.
How the growing 4-day work week trend affects project timelines, SLA deadlines, and business day arithmetic.
