Contact

Questions, corrections and requests all go to one inbox — and a person, not a system, reads every message.

Corrections to time data

If a clock change on this site disagrees with your own government’s announcement, tell us which zone and which date. We would rather patch a zone by hand than wait for the next database release. Include the IANA zone identifier if you know it — see IANA time zone notes.

Missing or misnamed cities

Adding a city is a data edit rather than a code change, so it is quick. Send the name, the country and, if you have it, the coordinates.

Privacy requests

Access, erasure and the rest are covered on the Privacy page; write to the same address and say what you need.