Sunrise and Sunset Calculator
Choose a UK city or type a latitude and longitude, pick a date, and see the times in your own time zone, with day length and the first and last light.
Sunrise and sunset are for the top edge of the sun at the horizon, with a standard allowance for the bending of light by the air. Hills and buildings change what you see.
Worked examples
Longest day, London
21 June 2025
Sunrise 04:43, sunset 21:22 (BST)
Day length about 16 hours 38 minutes.
Shortest day, London
21 December 2025
Sunrise 08:04, sunset 15:53 (GMT)
Day length about 7 hours 49 minutes.
Midnight sun
Tromso, 21 June 2025
No sunset
The sun stays up all day.
About Sunrise and Sunset Calculator
When the sun rises and sets depends on where you are and the time of year. Choose a UK city or type a latitude and longitude, pick a date, and this calculator shows sunrise, sunset, solar noon, day length, and the times of first and last light. Results can be shown in your own time zone, in UK time or in UTC, and the page tells you if the sun does not rise or set on that day.
It uses the standard solar position equations. These work out the angle of the sun for the place and date and then find when it crosses the horizon, allowing for the bending of light by the air. Results agree with published tables to within about a minute for most places. First and last light mark civil twilight, when the sun is 6 degrees below the horizon and it is bright enough to work outdoors. Hills, tall buildings and the weather change what you actually see.
How to use Sunrise and Sunset Calculator
- Choose a city, press Use my location, or type a latitude and longitude.
- Pick the date.
- Choose the time zone for the results.
- Read the times, the day length and how it compares with the day before.
Common uses
- Planning a walk, ride or photo shoot around daylight
- Checking daylight for building work or gardening
- Finding the shortest and longest days at your location
- Setting lighting or heating schedules
Frequently asked questions
When is sunrise in London on the longest day?
On 21 June 2025 the sun rises at 04:43 and sets at 21:22 British Summer Time, which makes a day of nearly 16 hours 38 minutes.
What is solar noon?
It is the time the sun is highest in the sky. It is not always at 12:00 because of your position within the time zone and a small yearly variation called the equation of time.
What are first light and last light?
They are the start and end of civil twilight, when the centre of the sun is 6 degrees below the horizon.
Why does it say the sun does not rise?
Inside the Arctic and Antarctic circles the sun can stay below the horizon in winter or above it in summer for days or months.
Do I need to find my latitude and longitude?
You can choose a UK city, or use the button that asks your device for your location. You can also read the coordinates from a map.