Read Sunrise, Sunset and Moon Phase Estimates
Understand coordinates, time zones and the difference between an astronomical estimate and a local observation.
Enter the signs correctly
Latitude is positive north of the equator and negative south. Longitude is positive east of Greenwich and negative west. Reversing a longitude sign can move the calculation to another part of the world. Choose the display time zone separately so that the resulting clock times are meaningful for your location.
A result depends on the horizon
The tool estimates standard apparent sunrise and sunset. Hills, buildings, elevation and atmospheric conditions can change when you actually see the Sun. Use these times for general planning and compare them with local observations when the visible horizon matters.
Polar dates can lack an event
Near the poles, the Sun may remain above or below the horizon for a whole day. A missing sunrise or sunset is then a feature of the date and place rather than a calculation that should be filled with a guessed time. Check the tool’s explanation for an event that does not occur.
Moon illumination is not crescent visibility
The displayed phase and illuminated fraction are astronomical estimates sampled as described by the tool. They do not establish whether a new crescent can be seen from a location. Weather, geometry and local observation matter, so religious calendar announcements should be checked separately.
Put it into practice
World Clock
Check the current local time and date in cities around the world. Add a time zone to your clock board without creating an account.
Time & planningHijri Date Converter
Convert a Gregorian date to an Islamic calendar date using either the civil tabular calendar or the Saudi Umm al-Qura calendar.
Date & calendarSunrise, Sunset & Moon Phase
Estimate sunrise, sunset and moon illumination for a date and coordinates, with solar times shown in a time zone you choose.
Faith & reference