Scotland(en_français)

 Makes sense to me, a History of Scotland, In French:

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How long is the day of June 20, 2025 in Montreal compared to London, England?

On June 20, 2025, the longest day of the year, Montreal will have 15 hours and 44 minutes of daylight. In contrast, London will experience 16 hours and 38 minutes of daylight. That means London’s day will be 54 minutes longer than Montreal’s! Quite the difference, thanks to their latitudes.

Is the night overall lighter in London than Montreal?

Yes, overall, the night in London tends to be lighter than in Montreal. This is due to a combination of factors:

Longer Twilight Period – London experiences extended periods of twilight, meaning that even after the sun sets, there is still residual light in the sky for a longer time compared to Montreal.

Higher Latitude – London's location results in longer daylight hours around the summer solstice, meaning the night is shorter and less dark.

Urban Light Pollution – London has significant light pollution due to its dense urban environment, making the night appear brighter compared to Montreal, which has fewer artificial lights affecting the sky.

In contrast, Montreal experiences a shorter twilight period, meaning the transition to darkness happens more quickly. So, while London’s nights don’t remain fully bright, they do tend to feel lighter overall.

Let's look at this in another way: does London get as dark as Montreal around the summer solciste?

Not quite! London stays brighter for longer than Montreal around the summer solstice. Here’s why:

Twilight Duration – London experiences a much longer twilight period, meaning the sky remains illuminated for a while after sunset. Montreal’s twilight is shorter, leading to quicker darkness.

Latitude Effect – London is farther north, so the sun dips below the horizon at a shallower angle, keeping the sky lighter for longer.

Astronomical Darkness – In Montreal, full darkness arrives sooner after sunset, whereas London may never reach complete darkness on the shortest nights—just a deep twilight.

So, while both cities experience short nights in June, London’s night is less dark than Montreal’s, making it feel like the city never fully sleeps!