BestZman
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EARTH · HEAVENS · TIME

BestZman

THE MEASURE OF THE DAY
0 meters · open-horizon model
◈ CALCULATED ON THIS DEVICE

Opening the heavens…

31.77800° N · 35.23500° EAsia/JerusalemView in Google Maps ↗
Map imagery loads from OpenStreetMap online. Sky calculations stay on this device.

Loading map imagery…

SELECTED COORDINATESScroll or pinch to zoom · click or drag the pin

Fine steps adjust the coordinate, not the map’s accuracy. Street imagery has a fixed detail limit; closer zoom enlarges it.

OBSERVER’S CLOCK
LOCAL MIDNIGHT24 HOURSNEXT MIDNIGHT
Scroll or pinch to zoom · click or drag the pin
SUNSET AT YOUR POINT שקיעה
AZ —UTC —
SUNRISE AT YOUR POINTAZ —
Fixed horizon model · ±1′ sensitivity, not total uncertainty ↗
שעה זמנית Selected proportional hour

± = conditional model sensitivity, not total uncertainty. Open a time for details.

The path of the Sun

חמה
AZIMUTH · TRUE NORTH
GEOMETRIC ALTITUDE
APPARENT ALTITUDE

Directional uncertainty: not quantified.

— Solar altitude• Selected instant↔ 12 divisions of daylight

A different horizon

מקום

Compare another coordinate, or start ten miles east.

Horizon & calculation settings

Negative elevation means below sea level, not underground. Eye height models an open horizon; underground depth cannot be its symmetric negative. Halachic presets keep their labeled standard baseline regardless of personal visibility. Height & underground ↗

Horizon, pressure and temperature are fixed model inputs, not automatically measured. One obstruction angle applies in every direction. Select “Custom angles” to use your dawn/nightfall angles.

BESTZMAN / THE APPROACH

Countdown

TIME UNTIL THE EVENT

00:00:00:000