Twelve hours, all year
One degree north of the equator, Singapore's daylight barely moves: sunrise near 07:00 and sunset near 19:00 every single day of the year, with the total swinging only about nine minutes between the extremes. There are no long summer evenings or short winter days — the equator does not do seasons of light.
The equatorial trade-off
The sun climbs almost vertically here, so golden hour is the shortest of any city on this site — often under 25 minutes — and arrives twice a day with little seasonal variation. Singapore also sits east of its UTC+8 zone, pushing solar noon toward 13:10 and making sunsets clock late for a near-equatorial city.
Sources and standards
Where these figures come from
Every formula on this page is implemented from the published reference material below. Where a value depends on a regional code, the calculator lets you override it rather than assuming one jurisdiction.
- NOAA Global Monitoring Laboratory — Solar Calculator — the solar position algorithm underlying sunrise, sunset and solar noon.
- NASA Science — Sun — solar geometry and the definition of civil, nautical and astronomical twilight.
- NIST Time and Frequency Division — time standards and the definition of the day.
Figures, formulas and reference tables last verified: 24 September 2026.