Avoid juggling multiple meetings at the same time. 
	 In 
		Calendar, you can check your appointments to see if a new event would conflict with your schedule. 
	 
 
  
 
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		  When creating or editing an event, tap 
			 Check calendar. 
		   
		
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		  Press and hold the event box, and then drag it to an available time slot. 
		   
		
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		  Drag the top and bottom nodes to adjust the event's time duration. 
		   
		  You'll see a message if there are conflicts with other scheduled events. 
		   
		
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		  Tap 
			 Done to return to the event screen, and then save your event.