The service
Ayyam is a free, independent set of calculation tools. Results are for guidance; they are not official documents and do not replace dates recorded in government documents or decisions by the relevant authorities.
Accuracy
We work to keep calculations correct and tested, and we document the rules on the Methodology page. Hijri dates may still differ from official moon-sighting announcements, and any software can contain errors, so the tools are provided “as is” without warranty.
Limitation of liability
We are not liable for decisions or losses resulting from relying on the site’s results alone. Verify important dates (deadlines, contracts, eligibility) with the relevant authority.
Acceptable use
You may use the tools for personal and professional purposes. Do not attempt to disrupt the site, overload it with excessive automated requests, or copy and republish its content or design as your own.
Changes
We may update these terms; the last update date is shown at the bottom of this page.
Last updated: