Skywheel is a very useful app to know the positions of the sun, moon, and planets at your current location. It has a built-in calendar to view historic or future skies. It can also be used to change the time and place to view the skies. It includes data for more exact positions, such as:

Your current latitude and longitude. 

The time of day (daylight, sunset, and so on). 

The exact position of the sun, moon, and planets. 

A built-in calendar to view historic or future skies. 

Use the built-in map to view the sky above the horizon or below the horizon.