How do I calculate the sunset in my city?

Answer 1

Visit the US Naval Observatory's web site and you can see the time of sunrise/sunset for an entire year for your city. While the sunrise/sunset times change from day to day, they do not change from year to year by more than a minute. So the time of sunrise for June 24, 2011 is the same as for June 24, 2012, or 2013, or 2014.

Actually, there will be a one-minute change from 2011 to 2012 - because of leap year. We use leap years to keep our calendar in synchronization with the actual solar year, so the time does change just a bit each year - but 2011 and 2015 will be exactly the same, and 2012 and 2016 will be exactly the same, for the same location.

Answer 2

You can calculate the sunset time in your city by using online tools or apps that provide this information. These tools typically require you to input your location, and they will generate the specific time of sunset for that day. Alternatively, you can use the formula based on your city's latitude and longitude to approximate the sunset time.

Answer 3

Use the general distance of the Earth from the Sun 91 million miles and you'll be within .0001% of the correct distance.