24 hours
It depends on your location on Earth. At the south pole, there are 0 hours of daylight on June 21... until ~13,000 years from now when the Earth's axis of rotation will precess to give it summer in June.
On June 21, the summer solstice, locations between 66.5 degrees North (the Arctic Circle) and 90 degrees North (the North Pole) experience 24 hours of daylight. This phenomenon occurs because the North Pole is tilted towards the Sun during this time, resulting in continuous sunlight for regions within the Arctic Circle. As you move closer to the Pole, the duration of daylight remains constant at 24 hours.
7
There's no Daylight Saving Time in Ecuador.
6 months of daylight = 4380 hours
On June 21, the North Pole experiences 24 hours of daylight due to the Earth's tilt towards the Sun. This means that the North Pole receives continuous sunlight and thus greater solar energy compared to the equator, which only receives sunlight during the day.
At 41 degrees north latitude, you gain some length of daylight every day from December 21 until June 21, and you lose some length of daylight every day from June 21 until December 21. The number of minutes difference from one day to the next also changes. It's greatest on March 21 and on September 21, and when you get to June 21 or December 21, it's almost nothing.
Twenty-four hours of daylight.
At latitude 51 degrees north, the amount of daylight you receive will vary depending on the time of year. On the summer solstice (around June 21), there will be about 17 hours of daylight, while on the winter solstice (around December 21), there will be around 7 hours of daylight.
4383 hours.
At 50 degrees north latitude, you would experience approximately 16 to 18 hours of daylight on the summer solstice. The further north you go from the equator, the longer the daylight hours during the summer solstice due to the tilt of the Earth's axis.
In Normandy in July, there are typically around 16-17 hours of daylight per day. This is due to the summer solstice occurring near the end of June, resulting in long daylight hours in July.