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Prayer times for the
United Kingdom and United States.

Accurate to the minute. Calculated using Muslim World League standards in the UK and the Islamic Society of North America in the US. Updated daily for sixty cities.

London· Manchester· Birmingham· New York· Chicago· Houston
About this site

One trusted source for daily prayer times across two countries.

WhiskAI is a daily reference for Muslims living in the United Kingdom and the United States. We publish prayer times for sixty cities — thirty in each country — refreshed every day from the Aladhan calculation engine, the most widely audited open-source prayer-time service in use today.

The two regions use different calculation conventions. In the United Kingdom, we follow the Muslim World League standard, the convention adopted by the Muslim Council of Britain and most major mosques in England, Scotland, Wales, and Northern Ireland. In the United States, we follow the Islamic Society of North America standard, used by ICNA, ISNA-affiliated mosques, and the majority of community Islamic centers across the country.

Our times are calculated, not observed. They reflect astronomical computations of sunrise, solar noon, and the angles of dawn and dusk twilight. Local mosques may publish iqamah times that are intentionally delayed from the calculated adhan times to give congregants time to gather. Always defer to your local mosque's published iqamah schedule.

United Kingdom · 30 cities

Prayer times across the UK.

From London to Edinburgh, Cardiff to Belfast — accurate Fajr, Dhuhr, Asr, Maghrib, and Isha for every major British city.

View all 30 →

London

uk
Fajr — | Magh —

Manchester

uk
Fajr — | Magh —

Birmingham

uk
Fajr — | Magh —

Edinburgh

uk
Fajr — | Magh —

Leeds

uk
Fajr — | Magh —

Glasgow

uk
Fajr — | Magh —

Liverpool

uk
Fajr — | Magh —

Cardiff

uk
Fajr — | Magh —
United States · 30 cities

Prayer times across the US.

From New York to Los Angeles, Chicago to Houston — daily prayer times for every major American city, computed with ISNA conventions.

View all 30 →

New York

us
Fajr — | Magh —

Los Angeles

us
Fajr — | Magh —

Chicago

us
Fajr — | Magh —

Houston

us
Fajr — | Magh —

Detroit

us
Fajr — | Magh —

Boston

us
Fajr — | Magh —

Dallas

us
Fajr — | Magh —

Seattle

us
Fajr — | Magh —
How we calculate

Two methods. One source of truth.

UK · Method 3

Muslim World League

Used across the United Kingdom by the Muslim Council of Britain, London Central Mosque, Birmingham Central Mosque, and most major British Islamic institutions. MWL uses an 18° angle for Fajr and 17° for Isha — the most widely-adopted calculation standard worldwide.

For Asr we apply the Shafi'i (standard) school by default. Hanafi-school users can switch via the calculation toggle on any city page.

US · Method 2

Islamic Society of North America

The ISNA convention is the standard across the United States, used by ICNA, ISNA-affiliated mosques, and the Islamic Center of America in Dearborn. ISNA uses 15° angles for both Fajr and Isha — slightly tighter than MWL, producing later Fajr and earlier Isha.

This difference is most noticeable in summer, when the high-latitude US cities like Seattle and Boston experience very late twilight.

Resources

Guides and references.

Ramadan guide

Sehri and iftar times, fasting rules, traditions across the UK and US.

Read

Calculation methods

Why MWL in the UK and ISNA in the US — the math, plain.

Explain

Friday prayer guide

What Jumu'ah involves, when it begins, how to attend across both regions.

Read

Latest articles

Recent journal pieces on prayer times, Ramadan, and community life.

Browse
FAQ

Frequently asked.

Answers structured for Google AI Overviews and Perplexity citation.

How are prayer times calculated in the United Kingdom? +
WhiskAI calculates prayer times for all British cities using the Muslim World League (MWL) standard, the convention adopted by the Muslim Council of Britain and the majority of mosques across England, Scotland, Wales, and Northern Ireland. MWL defines Fajr as the moment the sun reaches 18 degrees below the horizon during dawn twilight, and Isha at 17 degrees below the horizon during dusk twilight. Dhuhr is calculated as the moment the sun crosses the local meridian (true solar noon plus a 1-minute settling adjustment), Maghrib at sunset, and Asr by the standard Shafi'i shadow rule. We retrieve daily values from the Aladhan API and cache them for 24 hours per city.
How are prayer times calculated in the United States? +
American prayer times on WhiskAI use the Islamic Society of North America (ISNA) calculation method — the convention used by ISNA, ICNA, and most major American mosques including the Islamic Center of America in Dearborn. ISNA places both Fajr and Isha at 15 degrees below the horizon — slightly tighter angles than MWL, which produces marginally later Fajr times and earlier Isha times. The difference is most pronounced in summer at higher latitudes; in Seattle or Boston the variation between MWL and ISNA can reach 25 minutes, while in Miami or Houston it is closer to 10. We default to the Shafi'i school for Asr; readers following the Hanafi school can switch via the toggle on each city page.
What is the difference between adhan and iqamah? +
Adhan and iqamah are both calls to prayer, but they serve different purposes. The adhan is the first, longer call given when a prayer's time begins astronomically — WhiskAI publishes adhan times. The iqamah is the second, shorter call given immediately before the congregational prayer commences in a mosque, signalling worshippers to form rows. Most mosques delay iqamah by 15 to 30 minutes after adhan to give congregants time to gather, perform ablution, and assemble. Maghrib iqamah is typically the shortest delay (5–10 minutes) because the prayer's window itself is brief. Always defer to your local mosque's published iqamah schedule for congregational prayer; WhiskAI times tell you when the window opens.
Why does Asr time differ between schools of thought? +
Asr is determined by shadow length, and the four major Sunni schools differ on which shadow length signals the start. Three schools — Shafi'i, Maliki, and Hanbali (sometimes grouped as the standard school) — hold that Asr begins when an object's shadow equals its own height plus the residual noon shadow. The Hanafi school holds that Asr begins when the shadow equals twice the object's height plus the noon shadow, which produces an Asr time approximately 50 to 90 minutes later in temperate latitudes. WhiskAI defaults to the standard (Shafi'i) calculation across all 60 cities but provides a Hanafi override on each city page through the calculation toggle. Both calculations are theologically valid; the difference reflects long-established juristic tradition.
Why does Fajr happen so early during British summer? +
The United Kingdom sits between 50° and 58° north — much higher latitudes than the Mediterranean or Middle East where the calculation conventions originated. At those latitudes the sun rises and sets at shallow angles to the horizon, so dawn twilight starts earlier in absolute terms during summer and dusk twilight ends much later. In late June, calculated Fajr in London arrives around 02:30, in Manchester closer to 02:25, and in Edinburgh as early as 02:00 — well before the visible dawn that most people experience. Some northern British mosques therefore apply a high-latitude adjustment that moderates the calculation; consult your local mosque if your community follows such an adjustment, particularly during the four weeks surrounding the summer solstice.
Are these prayer times the same as my local mosque? +
Often yes, but not always — and the difference is usually intentional rather than an error. Three factors produce variation between WhiskAI and a mosque schedule. First, calculation method: a mosque using the Egyptian General Authority of Survey or the University of Islamic Sciences (Karachi) method will publish slightly different Fajr and Isha times. Second, Asr school: a Hanafi-tradition mosque will publish a noticeably later Asr. Third, iqamah delay: most mosques publish iqamah times rather than adhan times. WhiskAI publishes calculated adhan times consistent with MWL (UK) or ISNA (US) — for congregational prayer, always defer to your local mosque's published iqamah schedule, which is the time the imam will actually begin.
When is the next Ramadan? +
The next Ramadan after April 2026 is Ramadan 1448 AH, expected to begin on or around 15 February 2027 in the Gregorian calendar. The exact start date is confirmed in the days before Ramadan through either local moonsighting (the standard in many British and American communities) or by following the Saudi Arabia announcement. The Islamic calendar runs about 11 days shorter than the Gregorian calendar, so Ramadan rotates through the seasons over a 33-year cycle — Ramadan 1449 will begin around 4 February 2028, Ramadan 1450 around 23 January 2029. WhiskAI publishes the projected start date and updates the Ramadan guide page as confirmation arrives from regional moonsighting authorities including the UK Hijri Calendar Committee, ISNA, and ICNA.
How accurate is the Aladhan API? +
The Aladhan API, maintained by IslamicNetwork, is one of the most widely audited open-source prayer-time services in current use. It implements the standard astronomical algorithms originally derived by the University of Islamic Sciences in Karachi and the Egyptian General Authority of Survey, supports more than a dozen calculation methods, and exposes configurable Asr-school and high-latitude parameters. Times are accurate to within one minute under normal conditions and consistent with the calculations published by major mosques and Islamic timekeeping software. WhiskAI caches every response for 24 hours per (city, date, method) tuple to reduce load on the upstream API; on a typical day, each city page makes at most one upstream call regardless of visitor count. Aladhan attribution appears on every city page per their terms of use.
Can mosques embed WhiskAI prayer times on their own website? +
Yes — every city page on WhiskAI provides a free embed widget designed for mosque and community websites. The widget is a single-line iframe snippet displayed at the bottom of each city page that renders today's five prayer times plus the next-prayer countdown in a clean, responsive card matching most site designs. The embed is free, requires no registration or API key, and adapts automatically to its container width down to 320px. We ask only that the iframe links back to the source city page on WhiskAI, which it does by default. The widget refreshes its prayer times every 24 hours through our cached upstream calculation, so mosque webmasters do not need to rebuild or republish their pages.
Is there a JSON API I can use to build with WhiskAI data? +
Yes. Every city page exposes a public JSON endpoint at /api/uk/<slug>.json or /api/us/<slug>.json that returns today's prayer times, sunrise and sunset, the city's calculation method, the Hijri date, and the next-prayer countdown. The endpoint is rate-limited to 30 requests per minute per IP address — generous for personal projects but not adequate for high-traffic production use. We ask that you attribute the underlying calculation to the Aladhan API in any public-facing implementation, per Aladhan's terms. Cache responses on your end for 24 hours; the underlying values do not change within a single day. For higher-volume access or tailored data shapes, contact us at hello@whiskaifx.com to discuss arrangements.
Editorial

How we publish.

WhiskAI is published as a free public reference. We do not collect personal data, we do not require sign-up, and we do not run third-party analytics beyond standard server logs. All prayer time computations come from the Aladhan API, an audited open-source service. City-specific content is researched and reviewed before publication.

Where we describe mosques, halal districts, or community resources, we draw from public sources and verify addresses against the Muslim Council of Britain directory in the UK and the ISNA mosque directory in the US. We update city pages quarterly and publish a changelog on each page footer.

DA
Reviewed by WhiskAI editorial team
Last updated 25 April 2026 · Editorial policy