Sun

Sunrise, sunset, how long the day is, twilight and golden hour, at home or anywhere, and the moon's phase with its next quarters. Calculated in the house itself with the NOAA sun formula and Meeus' moon phases: within a minute or two of the US Naval Observatory. Only looking up a place name uses the internet.

What it does

• sun - today at home
• sun <place> - somewhere else
• sun on <date> [place] - another day, like sun on 21 Dec
• sun moon - the moon now, and its next phases

Say to Iris

• "When does the sun set tonight?"
• "How long is the day on 21 December?"
• "When is the next full moon?"

Permissions

internet: only to look up a place name. Coordinates (like 52.09,5.12) work without it.