| Time zone | Location | Time difference |
| GMT | London, Lisbon | |
|---|---|---|
| CET | Paris, Berlin, Brussels, Amsterdam | GMT+1 |
| EST | Boston, New York, Washington | GMT-5 |
| CST | Chicago, Dallas, Houston, San Antonio | GMT-6 |
| MST | Denver, Salt Lake City | GMT-7 |
| PST | San Francisco, Los Angles, San Diego | GMT-8 |