Set your home wallpaper to automatically change during the day and night. 
Important: You can only use a Time-based wallpaper while in Classic home screen layout.
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Press and hold on an empty space on your Home screen.  
		
- Tap Theme.
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		  Tap 
			 . 
		   
		
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		  Tap 
			 Home wallpaper. 
		   
		
- Tap . You'll then see two page thumbnails.
- Tap Change wallpaper under the Day thumbnail to choose the wallpaper you want to display during the day.  
- Select from the preset wallpapers or tap  to choose from your photos. to choose from your photos.
- Tap Change wallpaper under the Night thumbnail to choose the wallpaper you want to display during the night.  
- Tap  . .