求翻译：美国时间9月12日上午10点（北京时间9月13日1点），苹果将在旧金山芳草地艺术中心(Yerba Buena Center)召开发布会，如期发布了旗下第六款手机iPhone5。是什么意思？

U.S. time at 10:00 on the September 12th (Beijing time at 1:00 on the September 13), Apple held a press conference in San Francisco Grass Art Center (yerba buena center), released as scheduled under paragraph 6 phone iphone5.

When the United States on 12 september at 10 a.m. (Beijing Time on 13 September, 1 points) will be in San Francisco Apple fragrances to center for the Arts (Yerba Buena Center) held a news conference, were published on schedule 6 under the banner iPhone 5 mobile phones.

The American time on September 12 10 o'clock (the Beijing standard time on September 13 1 o'clock), the apple (Yerba Buena Center) will in the morning hold the release conference in the San Francisco fragrant grass art center, as scheduled had issued will serve under somebody's banner sixth section

United States time September 12 (September 13 Beijing time), Apple will grass Arts Centre in San Francisco (Yerba Buena Center) convened the Conference on schedule has released its sixth iPhone5.

正在翻译，请等待...