Prayer Times Calculator

Estimate prayer times from coordinates, date, UTC offset, twilight angles and your selected Asr and high-latitude conventions.

Local solar-noon date

Latitude (north positive) (°)

Longitude (east positive) (°)

UTC offset including DST (hours)Fixed offset for every event; no time-zone lookup.

Fajr depression angle (°)Enter the angle used by your local authority; sample settings are not an institutional preset.

Isha method

Isha depression angle (°)

Isha interval after Maghrib (minutes)

Asr shadow factor

Dhuhr delay after solar transit (minutes)

Maghrib delay after sunset (minutes)

High-latitude twilight adjustmentAdjusts Fajr and angle-based Isha when missing or beyond the selected night portion. No polar substitute.

Estimate Fajr, sunrise, Dhuhr, Asr, Maghrib and Isha for an entered location and date. The calculation combines an astronomical solar model with your chosen prayer conventions. It is a planning timetable; confirm the settings and final observance times with your local community.

How to use this tool

Enter latitude, longitude and the local date containing solar noon, within 1900–2100.
Enter the UTC offset including daylight saving time; the same offset applies to every event.
Choose twilight angles, Asr shadow factor, sunset/transit delays and the Isha method.
Choose a high-latitude adjustment only when it matches your community’s practice. Read each event’s full date.

Formula

Solar altitude follows latitude, solar declination and hour angle. Transit = 12 − longitude / 15 − equation of time (UTC hours). Asr altitude = atan[1 / (factor + noon-shadow ratio)].

USNO approximate solar coordinates are evaluated throughout the day. Sunrise and sunset use a solar-center altitude of −5/6°. A directional altitude crossing is solved numerically. Dhuhr and Maghrib add the entered delays; interval-based Isha follows the delayed Maghrib.

Example

At latitude 0°, longitude 0°, UTC offset 0, on 20 March 2026, the USNO example gives sunrise 06:04, solar noon 12:07 and sunset 18:11. With zero Maghrib delay and interval-based Isha set to 90 minutes, Isha is 19:41 that same date.

Frequently asked questions

What happens at high latitudes?

The selected fraction caps Fajr before sunrise and Isha after sunset, using the actual adjacent sunset-to-sunrise night. Missing sunrise or sunset cannot be replaced by a night fraction.

Are these official local prayer times?

No. Angles, religious conventions, precautionary delays, terrain and observation practices vary. The defaults are illustrative settings.

Does the calculator detect my time zone?

No. Enter a fixed UTC offset yourself. Events crossing midnight show their changed date. Dates spanning a clock change require an independently checked local timetable.

Sources

Last updated: 2026