Authorities → CAAS In development
CAAS — Singapore
Civil Aviation Authority of Singapore. Verified Last confirmed against primary sources on 2026-07-29.
Governing rule. Air Navigation Order paragraph 22 “Personal flying log book”; the night definition is at ANO Part I paragraph 2
Night
Twenty minutes after sunset until twenty minutes before sunrise, with sunset and sunrise determined at surface level. (ANO Part I para 2)
Command time
Designated command, with PICUS credited toward command. (SASP-2)
Cross-country
Not established as a distance for logging. The 25 NM figure in circulation is a CPL privilege radius, not a logging threshold. (under verification)
Where the night rule actually lives
Not in the licensing standards, where you would expect it. SASP-2’s own foreword points to ANO paragraph 2, and that is exactly where it is — which is why the figure is so often quoted without a source. (ANO Part I para 2)
Every rule above is read from the authority’s own legislation and recorded with the clause it came from. Where we have not confirmed something, the page says so. See all fourteen authorities and their verification state →
Questions
CAAS — asked and answered
How does Singapore define night?
“The time between 20 minutes after sunset and 20 minutes before sunrise, sunset and sunrise being determined at surface level” — Air Navigation Order, Part I paragraph 2. The surface-level qualifier matters at altitude and is routinely dropped when the figure is copied second-hand.
How many duty hours can cabin crew be rostered in 14 days in Singapore?
One hundred, against a pilot’s ninety — and 200 in 28 days against a pilot’s 180. Cabin crew limits are higher, not lower. Figures are indicative — confirm against your Operations Manual. Not legal advice.
Does standby count towards duty in Singapore?
Partly. Only twenty per cent of home standby counts toward cumulative duty, and airport standby without rest facilities counts as flight duty period. The proportion is authority-specific — the UK scheme uses fifty per cent, the FAA counts airport standby in full. Figures are indicative — confirm against your Operations Manual. Not legal advice.