Free tools, provided as is
Chronira’s tools are free to use, with no account. They are provided “as is” and “as available”, without any warranty, express or implied, including warranties of accuracy, completeness, availability or fitness for a particular purpose. The calculation rules are documented openly in the methodology and are tested, but no calculation tool can rule out every error, and the site may occasionally be unavailable or change.
Check important dates with official sources
Results are for information. Before relying on a date, deadline, age, number of business days, working-time total or pay figure for anything that matters, such as a legal or contractual deadline, a payroll, travel, a religious observance or an official application, confirm it with the authority, employer, contract or official calendar that applies to you. Islamic dates are expected dates on the Umm al-Qura calendar, and the official date in your country can differ. More detail is given in the disclaimer.
No liability for decisions
You are responsible for the inputs you enter and for the decisions you make based on the results. To the extent permitted by the law that applies to you, Chronira and its maintainer are not liable for any loss or damage arising from the use of, or the inability to use, the site or its results. Nothing in these terms limits any right you have that cannot be limited by law.
Acceptable use
You may use Chronira for personal, educational and professional purposes, and you are welcome to link to any page. Please do not:
- attempt to disrupt, overload or gain unauthorised access to the site or its hosting;
- use automated tools to request pages at a rate that affects availability for other people;
- copy the site, or republish its text or design as your own, or present Chronira results as official announcements;
- use the site in a way that breaks the law.
Privacy
What happens to the information you enter is explained in the privacy policy. In short, calculations run in your browser and your inputs are not sent to a server.
Changes to these terms
These terms may be updated as the site evolves, for example when new features are added. The version published on this page is the one that applies. Continuing to use the site after a change means you accept the updated terms. Questions about these terms can be sent through the contact page.