How to get latest articles of gamespot using api

I am using gamesport api to get latest articles but getting really old data related to 1995

Here is my api

http://www.gamespot.com/api/articles/?api_key=*************************************************&format=json

"publish_date": "1996-05-01 12:00:00", "update_date": "1996-05-01 12:00:00", "review_type": "primary", "id": 2531694, "authors": "Jeff Sengstack", "title": "Under a Killing Moon Review",

@arslan437: Hi did you find the solution for this?
Docs says
Date filters: &filter=field:start date|end date (using datetime format)

don't exactly know what is the format though