# Salah times

Salat times at Taipei Cultural Mosque in Taiwan.

Salat times refers to times when Muslims perform prayers (salat). The term is primarily used for the five daily prayers plus the Friday prayer. According to Muslim beliefs, the salat times were taught by Allah to Muhammad.

Prayer times are standard for Muslims in the world, especially the fard prayer times. They depend on the condition of the Sun and geography. There are varying opinions regarding the exact salat times, the schools of Islamic thought differing in minor details. All schools of thought agree that any given prayer cannot be performed before its stipulated time.

## Five daily prayers

The five daily prayers are obligatory (fard) and they are performed at times determined essentially by the position of the Sun in the sky. Hence, salat times vary at different locations on the Earth.

### Fajr (dawn)

Fajr begins at subh saadiq -- true dawn or the beginning of twilight, when the morning light appears across the full width of the sky -- and ends at sunrise. Wudhu needed.

### Dhuhr (midday)

The time interval for offering the Zuhr or Dhuhr prayer starts after the sun passes its zenith and lasts until 20 min (approx) before the call for the Asr prayer is to be given. There is thus a long period of time within which this prayer can be offered, but people usually make their prayer within two hours after the Azan has been announced from Mosque.[according to whom?][clarification needed] This prayer needs to be given in the middle of the work-day, and people normally make their prayers during their lunch break.

Shia (Jafari madhab) differs regarding end of zuhr time. Per all major Jafari jusrists, end of dhuhr time is about 10 minutes before sunset, the time that belongs exclusively to asr prayer. Dhuhr and asr time overlaps, apart from first 5 minutes of dhuhr, which is exclusively delegated for it. Asr prayer cannot be offered before zuhr in the zuhr time.

### Asr (afternoon)

The Asr prayer starts when the shadow of an object is the same length as the object itself (or, according to Hanafi fiqh[citation needed] , twice its length) plus the shadow length at zuhr, and lasts till sunset. Asr can be split into two sections; the preferred time is before the sun starts to turn orange, while the time of necessity is from when the sun turns orange until sunset.

Shia (Jafari madhab) differs regarding start of asr time. Per all major Jafari jusrists[citation needed], start of asr time is about 5 minutes after the time of sun passing through zenith, that time belongs exclusively to dhuhr prayer. Time for dhuhr and asr prayers overlap, but the zuhr prayer must be offered before asr, except the time about 10 minutes before sunset, which is delegated exclusively to asr. In the case that the mentioned time is reached, asr prayer should be offered first (ada - on time) and dhuhr (kada - make up, late) prayer should be offered after asr.

### Maghrib (sunset)

The Maghrib prayer begins when the sun sets, and lasts till the red light has left the sky in the west. It usually lasts for about 18 to 20 minutes from the start of Isha Time.

### Isha (night)

The Isha'a or isha prayer starts when the red light is gone from the western sky, and lasts until the rise of the "white light" (fajr sadiq) in the east. The preferred time for Isha is before midnight, meaning halfway between sunset and sunrise.

## Time calculation

Equation of time
Declination of the sun

To calculate prayer times two astronomical measures are necessary, the declination of the sun and the difference between clock time and sundial clock. This difference being the result of the eccentricity of the earth's orbit and the inclination of its axis, it is called the Equation of time. The declination of the sun is the angle between sun's rays and the equator plan.[1]

In addition to the above measures, to calculate prayer times for a specific location we need its spherical coordinates.[2]

In the following ${\displaystyle T_{Z}}$ is the time zone, and ${\displaystyle T_{E}}$ the time equation value. ${\displaystyle Lng}$ and ${\displaystyle L}$ are the Longitude and the Latitude of the considered point, respectively. ${\displaystyle D}$ denotes the Declination of the Sun for a given date.

An other important equation gives the time difference between when the sun hits its highest point in the sky (Dhuhr time) and any other angle ${\displaystyle \alpha }$, as follow: ${\displaystyle T(\alpha )={1 \over 15}\arccos \left({-\sin(\alpha )-\sin(L)*\sin(D) \over \cos(L)*\cos(D)}\right)}$

• Midday (Dhuhr) time is easily obtained. When the sun reaches the mid sky, time is given by: ${\displaystyle T_{Dhuhr}=12+T_{Z}-(Lng/15+T_{E})}$
• Sunrise (Chorok) and Sunset (Maghreb) time are given by ${\displaystyle T(0.833)}$, in fact it is the astronomical sunset/sunrise that occurs for ${\displaystyle \alpha =0}$. 0.833 is a slight correction that gives the actual time. So ${\displaystyle T_{Chorok}=T_{Dhuhr}-T(0.833)}$ and ${\displaystyle T_{Sunset}=T_{Dhuhr}+T(0.833)}$.

If we consider the elevation of the point we should add another correction to the constant ${\displaystyle 0.0347\times {\sqrt {h}}}$.

• For Fajr and Isha many conventions about the angle ${\displaystyle \alpha }$ exist. It is of 17 and 18 degrees respectively for Fadjr and Isha prayers according to the Muslim World League.
• For Asr time according to the majority of Muslim schools, including Shafi'i, Maliki, Ja'fari, and Hanbali, it is when the length of an object shadows became equal to its length plus the length of its shadow at noon. The Hanafi schools states that the time of Asr is when an object's shadow reaches two times the length of the object itself, plus the length of its shadow at noon. The time the shadow of an object reaches ${\displaystyle T}$ times its length is given by the equation: ${\displaystyle A(T)={1 \over 15}\arccos \left({\sin(\operatorname {arccot} (t+\tan(L-D)))-\sin(L)*\sin(D) \over \cos(L)*\cos(D)}\right)}$.
• It is called for the Maghrib prayer when the sun is completely folded behind the horizon, plus 3 minutes by precaution.

Technological advances have allowed for products such as software-enhanced azan clocks that use a combination of GPS and microchips to calculate these formulas. This allows Muslims to live further away from mosques than previously possible, as they no longer need to rely solely on a muezzin in order to keep an accurate prayer schedule.[3]

## Friday prayer

The Friday prayer replaces the dhuhr prayer performed on the other six days of the week. The precise time for this congregational prayer varies with the mosque, but in all cases it must be performed after dhuhr and before asr times. If one is unable to join the congregation, then they must pray the dhuhr prayer instead. This salat is compulsory to be done with ja'maat for men. Women have the option to perform Jumm'ah in the mosque or to pray zuhr.

## Other salat

### Taraweeh

Also known as Salat Qiyam Allayl,[4] this Salat is considered a Nafilah (Arabic: صلاة نفل‎ ; Meaning: Voluntary/Optional Salah (formal worship)) and is performed during the month of Ramadan. The prayer is performed after Isha (night) prayer, usually in congregation. Eight to twenty Rakaat are typically performed, however, a short rest is taken after every four Rakaat.

### Salatul Janazah

Salat-e-Janaza or Namaze Janaza (Funeral prayer)

The Muslims of the community gather to offer their collective prayers for forgiveness for the dead. This prayer has been generally termed as the Namaze Janaza. The prayer is offered in a particular way with extra (four) Takbirs but there is no Ruku' (bowing) and Sajdah (prostrating). It becomes obligatory for every Muslim adult male to perform the funeral prayer upon the death of any Muslim, however when it is performed by the few it will not be obligation for all. Women also can attend the prayer.