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Mecca Time

Mecca Time is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mecca Time rather than just read about it. In short: Mecca Time was a proposed time standard that uses the line of longitude that goes through Mecca, Saudi Arabia (39°49′34″ E of the Greenwich Meridian) as its Prime Meridian. A clock based on this meridian would be at approximately UTC+02:39:18.3.

Key takeaways

  • Mecca Time belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Mecca Time to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Mecca Time from memory before moving on to harder problems.

Reference excerpt

Mecca Time was a proposed time standard that uses the line of longitude that goes through Mecca, Saudi Arabia (39°49′34″ E of the Greenwich Meridian) as its Prime Meridian. A clock based on this meridian would be at approximately UTC+02:39:18.3.

The proposal was made by Sheikh Yusuf al-Qaradawi and other Muslim clerics meeting in Doha, Qatar on April 21, 2008 for a conference titled "Mecca: the Center of the Earth, Theory and Practice".

Qatar conference The "Mecca: the Center of the Earth, Theory and Practice" conference was organized and attended by Muslim theologians and other religious officials from across the world. The Qatar meeting was the culmination of efforts to seek answers for scientific questions from the Qur'an and other Islamic scriptures – a trend called "Ijaz al-Qur'an" (Miraculous nature of the Qur'an). The conference promoted the belief that Islamic scripture also revealed scientific details, with Islamic scholars seeking to unearth and publicize the textual evidence. The conference revived a decades-old controversial issue, contending that the Greenwich Meridian was imposed by the United Kingdom and Western civilization during the colonial period and that Islam, unlike other religions, does not contradict science. One of the contentions was that unlike other longitudes, Mecca was in perfect alignment with the magnetic north. Muslim clerics hail this as evidence of the greatness of the qibla—the direction determined to be towards Mecca that Muslims across the world must turn towards while reciting prayers.

Mecca clock On 11 August 2010, (1 Ramadan, AH 1431), the large clock at Abraj Al Bait started to operate. Some Muslims hoped that this would establish "Mecca Time" as the world's defining time zone. While officials had originally expressed the conviction that the clock might help to establish Mecca as a prime meridian, it was instead set to Arabia Standard Time (UTC+3).

Criticism It is not clear what the speakers at the conference meant by "perfect alignment with the North Magnetic Pole". As the geomagnetic field of the earth continuously changes the deviation of the compass needle from true north (known as the magnetic declination) also slowly changes. In the past, there were periods when the compass needle at Mecca pointed true north (and there will be future periods when this is true again) but at the moment the line of no compass deviation is located somewhat to the southeast of Mecca. In 2023 the (predicted) magnetic declination of Mecca is 3.6° East and will continue to increase at about +0.04° per year. During the 1884 International Meridian Conference, when Greenwich was established as the initial meridian, the Ottoman Empire, at that time controlling Mecca, voted with the majority for Greenwich.

References

Worked examples

Example 1 — a first encounter with Mecca Time

Start with the simplest possible case. Write down what Mecca Time claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mecca Time before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mecca Time ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mecca Time

In research
Mecca Time appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Mecca Time in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Mecca Time is common in secondary-school and first-year university syllabi. It links to neighbouring topics Culture in Mecca, History of Mecca, Named meridians, so understanding it makes those chapters shorter.
In everyday life
Look for Mecca Time outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Mecca Time in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Mecca Time means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Mecca Time out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mecca Time in simple terms?

Mecca Time was a proposed time standard that uses the line of longitude that goes through Mecca, Saudi Arabia (39°49′34″ E of the Greenwich Meridian) as its Prime Meridian. A clock based on this meridian would be at approximately UTC+02:39:18.3.

Why does Mecca Time matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mecca Time?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mecca Time.

Tags

  • Culture in Mecca
  • History of Mecca
  • Named meridians
  • Prime meridians

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