Data Sources & Licenses

1. Overview

TimeZoria AI uses open data, attributed city descriptions and a small number of licence-controlled sources. This page explains what is used, under which licence, and how commercial use works.

TimeZoria AI is an advertising-supported website. All sources listed here permit commercial use. Attribution and licence links are provided on this page and, where required, next to the relevant content.

2. Sources and licences

• IANA Time Zone Database — IANA time zone identifiers, UTC offsets and daylight saving rules. Licence: Public domain.
• GeoNames — City coordinates, population, administrative region and nearby-place data. Licence: CC BY 4.0.
• Wikipedia contributors — Short city descriptions and economy excerpts where explicitly noted on the page. Adapted text remains available under CC BY-SA 4.0. Licence: CC BY-SA 4.0.
• Wikidata — Structured factual identifiers and links used while verifying city data. Licence: CC0 1.0.
• OurAirports — Nearest commercial airport names, IATA codes and distances. Licence: Public domain.
• Open-Meteo — 2024 temperature summaries for city climate cards. Licence: CC BY 4.0.

3. Attribution notes

• All listed sources permit commercial use. Attribution is required where stated.
• CC BY-SA 4.0 content remains licensed under CC BY-SA 4.0, including adapted or translated text. Advertisements do not change this.
• Do not add content from sources that are non-commercial, no-derivatives, editorial-use-only or unlicensed.

4. Wikipedia and CC BY-SA 4.0

Short city descriptions and economy excerpts may be adapted from Wikipedia. They remain available under CC BY-SA 4.0. Where this applies, the page names Wikipedia contributors, links to the source article and links to the licence.

If you reuse adapted Wikipedia text, you must preserve attribution and share your adaptation under the same licence. Advertisements on TimeZoria AI do not change these terms.