evansiroky/timezone-boundary-builder resource
A tool to extract data from Open Street Map (OSM) to build the boundaries of the world's timezones. observed · 2026-08-28
Health v2 · maintenance only
89/100
- Activity 92
- Release rhythm 80
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: 67.0
- age_days: 3729
- days_rel: 53
- days_push: 53
- n_releases_24m: 7
Adoption not part of the score
1114 stars · 95 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A tool and dataset project that builds the world's timezone boundaries from OpenStreetMap data, released as shapefiles and GeoJSON. Each boundary is linked to an IANA timezone identifier like America/Los_Angeles.
Use cases
- convert lat/lon coordinates to timezone identifiers
- download timezone boundary shapefiles for GIS
- build offline timezone lookup from GPS coordinates
- get timezone polygons as GeoJSON
- map timezones for a scheduling app
- generate timezone boundaries from OpenStreetMap data
When to choose
- you need to determine a timezone from geographic coordinates offline
- you need accurate timezone polygons for mapping or analysis
- you want data aligned with the IANA timezone database
When to avoid
- you only need the current UTC offset for a timezone name without geometry
- you need real-time timezone change alerts rather than periodic boundary data
Facets
dataset · maturity active
geospatial data-generation etl cross-platform cli timezone-boundaries openstreetmap shapefile geojson iana-timezones gis maps geospatial data-engineering nodejs
1 source
- readme: https://github.com/evansiroky/timezone-boundary-builder · fetched 2026-08-28 · fb50c0c30b0c
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| evansiroky/timezone-boundary-builder | main | 89 |
For agents
markdown · JSON · MCP: product_card(name="evansiroky/timezone-boundary-builder")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem