Calculation Disclaimer
Understand the assumptions behind the results before relying on them.
Dates and time
Calendar intervals, elapsed hours and working days are different measures. Time zone rules depend on the date and the version of the bundled IANA time zone dataset. Browser clocks depend on your device. Check local authorities for legal deadlines and official time requirements.
Faith and astronomy
Hijri calendar methods and local moon sightings can differ. Calculated prayer times are not congregation schedules. Zakat estimates use a simplified monetary-assets model and user-entered nisab; they are not a religious ruling. Sun and moon results are astronomical estimates rather than observations.
Holiday coverage
Holiday lists are supplied by Calendarific and stored in our database. Each country page shows the saved year and update date. A visit checks the saved list’s age and refreshes it when more than 30 days old, within the provider allowance. A public holiday, regional holiday and observance can have different effects on opening hours. Confirm closures and substitute days with the relevant government or organization.
Corrections
If a result appears wrong, contact info@zenutility.com with the tool URL and a reproducible example. We welcome corrections and aim to make limitations visible where the calculation is performed.