https://graph.facebook.com/me/insights/page_impressions_unique/day?access_token={{TOKEN}}&since=1388649600&until=1391241600 1388649600 = 1/2/2014 12:00:00 AM GMT-8 1391241600 = 2/1/2014 12:00:00 AM GMT-8 returns something that looks like this: { /* previous, next page, etc keys */ "data": [ { "values": [ { "end_time": "2014-01-03T08:00:00+0000", "value": 4 }, { "end_time": "2014-01-04T08:00:00+0000", "value": 1 }, { "end_time": "2014-01-05T08:00:00+0000", "value": 0 } .... /* More 0 values here until Feb 2 */ ], "period": "day", "description": "Daily: The number of people who have seen any content associated with your Page.