Agency
USNO
Update cadence
Computed per request (USNO API, local almanac fallback)
Category
Airport Operations
What we ingest
Sun/moon rise-set and civil/nautical/astronomical twilight times from the USNO RSTT one-day API (aa.usno.navy.mil) by coordinates; several in-app surfaces (dashboard widget, flight briefings, night-currency) also compute the same events locally from a solar-position algorithm as an offline fallback.
Where this feed reaches
A region on this list means we fetch it. It is not a promise of station density: a listed region can still have sparse or no reporting sites near a given airport. Where a feed does not reach a region at all, this page says so instead of showing an empty panel.
- Global — no regional boundary applies
How AeroCopilot uses it
Night-currency planning + AI sun-times tool.
Powers these features
The product surfaces below depend on this feed.
AI Copilot night planning
Upstream source: https://aa.usno.navy.mil/data/RS_OneDay
Cite this
PermalinkAeroCopilot — USNO Sun & Moon Times. Data: USNO (https://aa.usno.navy.mil/data/RS_OneDay). https://www.aerocopilot.ai/data-sources/sun-times.
Try the AI Copilot with this data
The Copilot has live access to USNO Sun & Moon Times during every conversation.