Question 1

How are prayer times calculated in the UK?

Accepted Answer

Prayer times are calculated using precise astronomical algorithms based on your exact latitude, longitude, elevation, and local timezone. Fajr and Isha are determined using solar angles below the horizon, while Dhuhr is based on true solar noon, Asr on shadow length, and Maghrib on sunset. Daylight Saving Time (British Summer Time) is automatically accounted for where applicable.

Question 2

Why do prayer times differ between UK cities like London and Glasgow?

Accepted Answer

Prayer times vary because of differences in latitude and longitude. Northern cities such as Glasgow experience longer summer days and shorter winter days than southern cities like London. Even towns relatively close to each other can differ by several minutes due to their position on the globe.

Question 3

Why do Fajr and Isha times sometimes vary between different apps?

Accepted Answer

Most differences come from the calculation method used. Different Islamic authorities define dawn and nightfall using slightly different solar angles. In the UK, many mosques follow the Muslim World League (18°) method, while some apps may use 15°, 17°, or other variations. These small angle differences can shift Fajr and Isha by 10–30 minutes.

Question 4

Which calculation method is commonly used in the UK?

Accepted Answer

Most UK mosques use the Muslim World League (MWL) method, which defines Fajr at 18° below the horizon. However, some communities may follow alternative recognised methods. For unity within your local community, it is recommended to follow your mosque's timetable where available.

Question 5

Why do prayer times change so much between summer and winter?

Accepted Answer

The UK's high latitude means daylight hours vary significantly throughout the year. In summer, sunrise is very early and sunset is late, making Fajr and Isha much earlier and later respectively. In winter, the opposite occurs. This seasonal variation is caused by the Earth's axial tilt as it orbits the sun.

Question 6

Do prayer times change when the clocks go forward or back in the UK?

Accepted Answer

Yes. When the UK switches to British Summer Time in March, prayer times move forward by one hour. When clocks go back in October, times shift back by one hour. The actual solar position does not change — only the civil clock time.

Question 7

Are these prayer times accurate and reliable?

Accepted Answer

Yes. Our times are calculated using established astronomical algorithms that account for location, elevation, timezone, and seasonal changes. Small differences may exist compared to printed mosque timetables due to rounding or chosen calculation methods. For community consistency, following your local mosque is always recommended.

Question 8

Can I use GPS to find prayer times for my exact location?

Accepted Answer

Yes. You can allow GPS access to automatically detect your precise location. This ensures prayer times are calculated specifically for where you are, rather than a nearby city centre.

Question 9

Can I view monthly and yearly prayer timetables?

Accepted Answer

Yes. You can access full monthly and annual prayer timetables for locations across the UK. These are useful for planning ahead, especially during Ramadan or when printing a timetable for home or mosque use.

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