Open Daylight 
to change how sunlight and shadows affect your scene during different times of the day and year.
Sunlight slider
Drag the Sunlight slider 
left and right to adjust the sunlight and shadows in your scene at different times of the day. You can also adjust the time of day by manually entering it or by clicking specific times on the slider. To change time zones, click the current time zone to the right of the time box and choose from the drop-down list.
Note:
The Daylight tool uses UTC time and does not account for the daylight savings times in different countries and regions of the world.
Click Play 
to animate
the sunlight as it cycles through the day in your scene.
Calendar
Click the Calendar drop-down menu to change the sun's position at different times of the year.
Click Play to animate
the sunlight as it cycles through the
months in a year in your scene.
Shadows
Check Show shadows to illustrate shadows in your
scene. You can change shadow effects by adjusting the Sunlight slider , time zone, and Calendar options.