Terms of use
Use of the site
The tools are provided free of charge for personal and commercial use. You may link to any page and share result links freely.
Accuracy and reliance
Considerable care goes into the calculations, but they are provided without warranty. Time zone rules change by government decision and your browser's data may lag such a change; holiday lists are a convenience and are not authoritative; astronomical figures are approximations from published formulas; translations other than English may contain errors. Do not rely on this site alone for legal deadlines, payroll, contracts, aviation, navigation or anything else where being wrong is costly. Verify against an authoritative source.
Availability
The site may be changed or withdrawn at any time. Data you store in your browser is your responsibility; export anything you need to keep.
Liability
To the extent permitted by law, no liability is accepted for any loss arising from use of the site or reliance on its output.
Intellectual property
The name, design and written content of this site belong to its operator. Time zone rules come from the IANA time zone database, and the astronomical calculations implement published formulas that are not themselves owned by anyone.
Changes to these terms
These terms may be revised. Continuing to use the site after a revision means accepting the current version, so it is worth re-reading if you depend on the tools for anything material.
Governing law
The operator should state the governing jurisdiction here before publishing.
Acceptable use
Use the tools for anything lawful, personal or commercial. You may link to any page, share result links, and embed the clock widget on your own site without attribution. Automated bulk scraping of the generated pages is discouraged simply because the underlying data — the IANA time zone database — is freely available at source and is a better thing to build on.
No warranty
The tools are provided as they are, without warranty of any kind. Considerable care goes into the calculations and they are covered by an automated test suite, but no guarantee is made that they are free of error or fit for any particular purpose.
Limitation of liability
The operator is not liable for any loss arising from use of this site. Given that it is free and that every calculation can be verified against an authoritative source, the reasonable expectation is that you will do so where the answer matters.
Third-party data
Time zone rules come from the IANA time zone database, which is public domain. Astronomical calculations implement published algorithms. Neither is owned by this site, and neither carries any warranty from its authors either.
Availability
No uptime is promised. The site is static and cached, so it is unusually resilient and will often keep working offline, but it may be taken down, moved or changed without notice. Anything you need to keep — a timesheet, a list of cities — should be exported rather than left here.
The clock widget
The generated widget is yours to embed on your own site, commercially or otherwise, with no attribution required. It is self-contained and makes no request back here, which means it will keep working independently of whatever happens to this site — and equally that it will not receive fixes.
Links to other sites
Where a page links outward, that site is governed by its own terms and privacy policy. No endorsement is implied and no responsibility is taken for what you find there.
Which version applies
The version published here at the time you use the site. There is no notification mechanism, so if you depend on these tools for something material it is worth re-reading occasionally.
Severability
If any part of these terms is found unenforceable, the rest continues to apply. The intent throughout is straightforward: the tools are free, they are provided in good faith, and you should verify anything that matters.
Contact
Questions about these terms can go to the address on the contact page.
What these terms cover
They cover your use of the pages and tools published here, and nothing else. They do not create a support relationship, they do not promise availability, and they do not transfer any obligation to the operator beyond publishing the site in good faith.
Data you enter
Anything you type into a calculator stays in your browser and is never transmitted, so there is no question of ownership or licensing over it. The same applies to lists you build, timers you set and sheets you fill in: they are yours, they are local, and nobody else can reach them.
Reliance
The most important clause is the plainest. Time zone rules change by government decision and your browser may lag such a change; holiday lists are a convenience rather than an authority; astronomical figures are approximations from published formulas; and every clock here reads from your own device. Do not rely on this site alone for legal deadlines, payroll, contracts, aviation, navigation or anything else where being wrong carries a cost. Verify against an authoritative source.