The reason is because your physical location doesn't affect the current date and time on the website. All actions take place on server time. A lot of work for the Phoenix project is about localization, so this issue should soon be a thing of the past. Apologies to our friends on the other side of the globe.
Another could ! Could someone explain why this has not been a problem in the past ? And thanx OpinioNate your are the only one to say sorry ?