Why Holiday Awareness Matters for Global Teams
A critical product launch scheduled for October 3 sounds fine to a New York product manager — until they discover it's National Foundation Day (개천절) in Korea, a public holiday. The Korea-based development team isn't working. Launches, deadline negotiations, important calls, and financial transactions all need to account for the holiday calendar of every country involved.
Major Holiday Clusters by Region
Korea
- Seollal (설날): 3-day holiday around Lunar New Year (Jan/Feb) — offices effectively close 1–2 days before and after
- Independence Movement Day (삼일절): March 1
- Children's Day (어린이날): May 5
- Memorial Day (현충일): June 6
- National Liberation Day (광복절): August 15
- Chuseok (추석): 3-day mid-Autumn harvest festival (Sep/Oct) — the most significant Korean holiday
- National Foundation Day (개천절): October 3
- Hangul Day (한글날): October 9
- Christmas: December 25
United States
- New Year's Day: January 1
- MLK Day: 3rd Monday of January
- Presidents' Day: 3rd Monday of February
- Memorial Day: Last Monday of May (Q2 end of sprint common conflict)
- Independence Day: July 4
- Labor Day: 1st Monday of September (end of summer, many returns delayed)
- Thanksgiving: 4th Thursday of November (+ Friday informal holiday, ~5-day break)
- Christmas–New Year: Dec 25–Jan 1 (many tech companies close the entire week)
Japan
- New Year (正月): January 1–3 (extended to ~Jan 7 in practice)
- Coming of Age Day (成人の日): 2nd Monday of January
- Golden Week: April 29–May 5 (Showa Day, Constitution Day, Greenery Day, Children's Day) — Japan essentially shuts down
- Marine Day (海の日): 3rd Monday of July
- Obon (お盆): ~August 13–16 (not official holiday but most companies close)
- Respect for the Aged (敬老の日): 3rd Monday of September
United Kingdom / Europe
- Bank holidays (UK): New Year, Good Friday, Easter Monday, May Day, Spring/Summer Bank Holiday, Christmas (2 days)
- August (France, southern Europe): Skeleton staffing — effectively 50% capacity for many companies
- Christmas–New Year: Extended break throughout Europe, Dec 24–Jan 2 common
Tools for Holiday-Aware Scheduling
- Google Calendar: Subscribe to national holiday calendars for each country — built-in option in calendar settings
- Outlook: Add international holiday calendars via File → Account Settings → Calendar → Add calendar
- Notion: Maintain a shared team page with annual holiday schedules for each region
- TimeFYI: Check real-time public holidays for any city before scheduling international meetings
The Holiday Buffer Rule
For any deliverable involving a partner or team in a different country, add a 3-business-day buffer before and after major holiday clusters. Emails sent before a major holiday often go unread for a week. Code reviews, approvals, and financial authorizations requested just before a major holiday can wait significantly longer than you expect.