{
	"description" : "A representation of an event",
	"type" : "object",
	"properties" : {
		"dtstart" : {
			"format" : "date-time",
			"type" : "string",
			"description" : "Event starting time",
			"required":true
		},
		"summary" : {
			"type":"string",
			"required":true
		},
		"location" : { 
			"type" : "string" 
		},
		"url" : {
			"type" : "string", 
			"format" : "url" 
		},
		"dtend" : {
			"format" : "date-time",
			"type" : "string",
			"description" : "Event ending time"
		},
		"duration" : {
			"format" : "date",
			"type" : "string",
			"description" : "Event duration"
		},
		"rdate" : {
			"format" : "date-time",
			"type" : "string",
			"description" : "Recurrence date"
		},
		"rrule" : {
			"type" : "string",
			"description" : "Recurrence rule"
		},
		"category" : {
			"type" : "string"
		},
		"description" : {
			"type" : "string"
		},
		"geo" : { "$ref" : "http://json-schema.org/draft-03/geo" }
	}
}