# Chrono

> Chrono is an automatic day-counting app for travel, tax residency, and Schengen 90/180 limits. It tracks the days you spend in each country, US state, and city — so 183-day rules, Schengen stay limits, and US state-residency goals have a reliable answer. When proof matters, Chrono Verified creates a biometric-attested record of presence.

Chrono is a service of Bloodhound Intelligence, Inc. The company was recognized in Bloomberg News (April 2024) for solving the residency-proof problem for high earners.

## Tools

- [Schengen Calculator — 90/180 Day Counter & Trip Planner](https://www.gochrono.io/tools/schengen-calculator): Count Schengen days, plan a trip, or see max stay — against the rolling 180-day window across all 29 Schengen countries.
- [Country Tax Residency Tracker](https://www.gochrono.io/tools/country-tax-residency): How the UK, Spain, Portugal, France, and Germany evaluate tax residency — each country's actual rules, not a generic 183-day count.
- [New York Statutory Residency Risk Checker](https://www.gochrono.io/tools/new-york-residency-risk): 184-day statutory residency + permanent place of abode + ties assessment. A practical signal, not a legal determination.
- [Old-State Tax Risk](https://www.gochrono.io/tools/old-state-tax-risk): Can my old US state still tax me after I move? Domicile + day count + ties over time.
- [Travel Footprint](https://www.gochrono.io/tools/travel-footprint): A travel day counter and world map. Visualize countries visited, count days abroad. Useful for digital nomads, expats, and frequent travelers.

## Guides

- [Schengen Area: The 90/180 Rule, Explained](https://www.gochrono.io/guides/schengen-area): How the Schengen rolling 180-day window works, entry/exit day counting, and how to avoid overstay bans.
- [International Tax Residency](https://www.gochrono.io/guides/tax-residency): Why 183 days is only part of it — domicile, center of vital interests, and treaty tie-breakers.
- [US State Tax Residency](https://www.gochrono.io/guides/us-state-residency): Domicile vs. statutory residency. Two independent tests; either one can trigger state tax.
- [New York Residency](https://www.gochrono.io/guides/new-york-residency): The 184-day rule, permanent place of abode, and how NY auditors actually test residency.
- [Moving to Another State](https://www.gochrono.io/guides/moving-to-another-state): Steps to cleanly change state residency and what old states look for.
- [Proof of Presence](https://www.gochrono.io/guides/proof-of-presence): What records actually hold up under tax audit.
- [Jock Tax](https://www.gochrono.io/guides/jock-tax): How state jurisdictions tax professional athlete earnings by game day.

## About

- [Trust](https://www.gochrono.io/trust): How Chrono handles data, and the Bloomberg News coverage.
- [Pricing](https://www.gochrono.io/pricing)
- [Get Chrono](https://www.gochrono.io/get-started): App Store (iOS) and Google Play (Android) install links.
- [Privacy Policy](https://www.gochrono.io/privacy-policy)
- [Terms of Use](https://www.gochrono.io/terms-of-use)

## Sitemap

https://www.gochrono.io/sitemap-index.xml