If the sun is at it’s relative peak at noon, why does it take so much longer to set than it does to rise for at least half of the year?

307 viewsOtherPlanetary Science

The closer you are to the date of the summer solstice, it seems to gradually take up to 10 hours for the sun to set. Yet, the sun doesn’t begin to rise at 2am. Why is that?

In: Planetary Science

9 Answers

Anonymous 0 Comments

Solar noon is not the same as noon on a clock. That only happens during standard time **at the centre of a time zone**. (*To locate your time zone centre, find the number of hours you are ahead or behind of UTC and multiply that by 15 to get the longitude*).

If there is daylight saving time in effect, **solar noon will be delayed**. If you are too far **east** in your time zone, solar noon will be **earlier** than noon on your clock. If you are too far **west** in your time zone, solar noon will be **later** than noon on your clock.

For instance, Vancouver, British Columbia is approximately three degrees west of its time zone centre, and it is on daylight saving time. Sunrise today is at 06:53 and sunset at 19:22. The average of those is 13:08.

You are viewing 1 out of 9 answers, click here to view all answers.