01
Spot the overlaps
See instantly which weeks have multiple countries off at the same time — and which weeks everyone's available.
For distributed teams · 100+ countries · Free forever
Find the clean weeks
your global team
actually shares.
Stop juggling spreadsheets. Compare public holidays across every country your team works in, spot the weeks where everyone's online, and plan launches without surprise day-offs.
100+countries
365days mapped
0€cost, ever
The Comparator
Pick the countries your team works in. We'll show you every public holiday for the year ahead, side by side.
Add at least one country above to see the holiday calendar.
Try popular combinations: ·
How HolidayClash helps
02
Catch long weekends
Public holidays that fall next to a weekend create three- and four-day breaks. We highlight them automatically for every country.
03
Pick clean launch dates
Planning a global launch, training, or sprint? Filter for weeks where no holiday hits any of your selected markets.
Built for teams that work across borders
HR & People Ops
Stop maintaining holiday spreadsheets by hand. Reference a single source for every country your employees live in, updated automatically.
Project Managers
See at a glance whether your sprint cycle hits a national holiday in any of your team's locations before you commit dates.
Marketing & Launches
Coordinate global product launches, ad campaigns, and email sends without accidentally landing on a major day-off in a key market.
Logistics & Operations
Anticipate bank holidays and government closures across the countries you ship to, before they bite into your delivery promises.
Common questions
Where does the holiday data come from?
HolidayClash uses the open-source Nager.Date public holiday API, which aggregates official government data for 100+ countries and is continuously updated.
Is HolidayClash really free?
Yes. The tool is free to use without registration. We may show display ads to cover hosting costs, but core functionality is free forever.
Do you cover regional or state-level holidays?
For most countries we cover national public holidays. Some countries also include regional subdivisions where the data is officially published. Always double-check region-specific holidays for legally critical decisions.
Can I export the calendar?
An export feature (CSV and iCal) is on the roadmap. For now you can view holidays year-by-year in the tool above.