Sky, sun, time.

A live observatory: the moon phase, the day - night terminator over a dozen cities, the sun on Vail. All computed locally in the browser, no APIs.

ELEVATION8,150ft

LATITUDE39.64°N

LONGITUDE-106.36°W

Vail

// HOME

Mountain Time · MST · UTC−07:00

Live · Mountain Time

17:00:00

// TIME SCRUB

Coordinates

39.64° N · 106.36° W

Elevation

8,153 ft

Sun Altitude

-2.6°

Sky State

Civil Twilight

LIVE · Mountain Time · 39.64° N, 106.36° W · Computed in Browser

Moon

// LUNAR

Phase: Last Quarter
Illumination: 45.0%
Age: 22.6 d
Trend: Waning

// DAY · NIGHT TERMINATOR

Where the sun is rising, where it is setting.

Subsolar point, solar declination, and the great circle that divides day from night, redrawn every minute from the date and the UTC clock. Dots are places on the clock panel below.

ProjectionEquirectangular

ModelSun: NOAA approx.

Update60 s

APINone

// WORLD CLOCK · 24h

Twelve cities, one tilt of the Earth.

LIVE · UTC00:00:00

London
United Kingdom
01:00
:00
Thu 01 JanGMT · UTC+00:00
Paris
France
01:00
:00
Thu 01 JanCET · UTC+01:00
Berlin
Germany
01:00
:00
Thu 01 JanCET · UTC+01:00
Dubai
United Arab Emirates
04:00
:00
Thu 01 JanGST · UTC+04:00
Mumbai
India
05:30
:00
Thu 01 JanIST · UTC+05:30
Shanghai
China
08:00
:00
Thu 01 JanCST · UTC+08:00
Tokyo
Japan
09:00
:00
Thu 01 JanJST · UTC+09:00
Sydney
Australia
10:00
:00
Thu 01 JanAEST · UTC+10:00
New York
United States
19:00
:00
Wed 31 DecEST · UTC-05:00
Vail
Colorado
17:00
:00
Wed 31 DecMST · UTC-07:00
Los Angeles
California
16:00
:00
Wed 31 DecPST · UTC-08:00
Honolulu
Hawaii
14:00
:00
Wed 31 DecHST · UTC-10:00