Clarity · care · useful knowledge
About IslamCal
A dependable guide to the Hijri calendar, its sacred seasons, and the methods Muslims use to determine dates.
Our purpose
Helping Muslims understand time
IslamCal makes the Islamic calendar easier to understand and use. We connect dates with their religious meaning, historical context, and practical implications while explaining why communities may sometimes begin a month on different days.
The site is educational. For worship decisions that depend on a local announcement, readers should follow a trusted local mosque, qualified scholar, or recognized religious authority.
Our editorial framework
What readers can expect
Sunni foundations
Religious guidance is presented through the Qur’an, authentic Sunnah, and mainstream Sunni scholarship. Matters of consensus are distinguished from legitimate juristic disagreement.
Evidence before custom
Historical reports, regional customs, and popular observances are not described as established Sunnah unless reliable evidence supports that description.
Differences explained fairly
Where qualified Sunni scholars differ—such as local versus wider moon sighting—we explain the approaches respectfully and identify the practical consequence.
Dates labeled clearly
Every time-sensitive date should be identified as confirmed, calculated, estimated, or locally observed, together with the relevant method or authority.
Designed for learning
IslamCal organizes information around months, events, calendar fundamentals, moon sighting, and history. Plain-language summaries introduce each subject, while evidence notes and cross-links provide a path to deeper understanding.
Built to be transparent
Estimated dates can help with planning, but they do not silently become confirmed religious dates. When information changes or an error is identified, the goal is to correct it clearly and preserve the distinction between prediction and observation.
Start exploring
Begin with the calendar guide, then explore the twelve months and the history of Hijri timekeeping.