Sunset and sunrise times in Cayenne, French Guiana

Clock noon and solar noon are 31 minutes apart here — the sun is highest at 12:31 standard time. That gap comes from the time zone's width, not the latitude.

Light lingers for 21 minutes after sunset before civil twilight ends — 3 minutes shorter than the 24-minute median across tracked cities, which is what 4.9°N buys you.

Between solstices the sunset walks 47° across the horizon — WSW in midwinter, WNW in midsummer — which is why a fixed viewpoint works only part of the year. Today's bearing is W.

By the end of August the sun will be setting 10 minutes earlier than it did on the first, a shift of roughly 19 seconds a day.

On 2 April and 10 September the midday sun stands at the zenith, 161 days apart. Those are the only two days of the year with no noon shadow. The next one is in 16 days.

Sunset lands at close to the same time all year — the annual spread in day length is only 34 minutes, compared with about 8.8 hours at London's latitude.

Sitting 2 months ago of the longest day (21 June) means the sun has almost stopped drifting — 12h 14m of daylight today, and only 6 minutes of movement in sunset over the next two weeks.