semiatic

Moon icon at the top of an iPhone: what does it mean?

On an iPhone it means Do Not Disturb is on.

What Apple says

What it looks like
A solid crescent moon.
Shown by
iPhone (Apple)
On other phones
Samsung’s Do not disturb icon is a circle with a minus sign, not a moon.

Icons to compare

Sources

Each meaning above is taken from the maker’s own support page, fetched and read on the date shown. The drawing is ours; the real icon on your phone may be drawn a little differently and can change with software updates.