4 a.m. in Los Angeles
6 a.m. in New York
12 noon in Paris
2 p.m. in Abu Dhabi
6 p.m. in Hong Kong
8 p.m. in Sydney
The ceremony will likely last around an hour.
More on the Royal Wedding:
Royal Reads: The Latest Books on the Royal Family
The Royal Wedding: Biggest Travel Event of the Year
Royal Wedding Dresses from Queen Victoria to Kate Middleton
Which Royal Tiara Will Kate Middleton Wear on Her Wedding Day?
Britain's Wedding Dress Designers: What Kate Middleton's Wedding Dress Will Look Like
The Royal Wedding Budget: Who's Paying the Bills The Official Royal Wedding Souvenirs