A system to determine a difference in a time zone of a user's computer accessing the Internet through an Internet Service Provider (“ISP”) server and the time zone of the ISP server including capturing from a clock of the user's computer the user's time zone, capturing the location of the ISP server, calculating a difference in the time zone of the user's computer and a time zone of the ISP server to determine a delta time zone number; and reporting the delta time zone number.