Contact and corrections

Report a wrong boundary, offset or city clock. Tell us what and where; we check every report against the IANA time zone database and U.S. Census data before changing anything.

Spot a wrong clock?Every report is checked against the IANA database and federal zone rules

What to include

Reach us:corrections@ustimezonemap.net. For the general form, use the mailto link above — it goes straight to the team that maintains the geographic data.

What we check

Corrections are triaged against the two data sources this site trusts: the IANA time zone database (for offsets & DST) and US Census TIGER (for state boundaries). SeeData Sources for the exact versions and update cadence.

How fast we respond

Factual errors (a wrong offset, a mislabeled boundary, a city in the wrong state) are the top priority: they’re verified against the source datasets and fixed on the next build. Content improvements and new state-map requests are worked through in weekly maintenance passes alongside the time-zone database refresh.

Other ways to reach us

Not sure where something fits? Send it to the general address — we route it to the right place. And if you found the maps useful, the state map index and the time converter are the two most-used tools beyond the homepage.