Ross ROSS = Recommend OSS · open-source software intelligence for agents

vacanza/holidays

Open World Holidays Framework observed · 2026-08-28

github.com/vacanza/holidays · homepage · Python · MIT (permissive) observed · 2026-08-28

Health v2 · maintenance only

99/100

  • Activity 99
  • Release rhythm 98
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: 14.0
  • age_days: 4392
  • days_rel: 16
  • days_push: 7
  • n_releases_24m: 47

Full methodology

Adoption not part of the score

1920 stars · 711 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A fast, efficient Python library for generating country- and subdivision-specific sets of government-designated holidays on the fly. It makes determining whether a specific date is a holiday fast and flexible across a worldwide catalog of regions.

Use cases

  • check if a date is a public holiday in a given country
  • generate a list of holidays for a state or province
  • calculate business days excluding holidays
  • build vacation or payroll scheduling logic
  • localize holiday names for an international app
  • get holidays for a specific year on the fly

When to choose

  • you need holiday data for many countries and subdivisions in Python
  • you want fast, on-demand holiday calculation without external API calls
  • you need localized holiday names and regularly updated rules

When to avoid

  • you need non-government or religious observance data beyond official holidays
  • you work outside Python or need a hosted holiday API service
  • you need historical holiday data far beyond the library's coverage

Facets

library · maturity active

date-time internationalization developer-tools python cross-platform holidays calendar worldwide vacation-planning localization

3 sources

Member repositories

RepositoryRoleHealth v2
vacanza/holidaysmain99

For agents

markdown · JSON · MCP: product_card(name="vacanza/holidays")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem