Allegro, any of several musical works in Nannerl Notenbuch by Wolfgang Amadeus Mozart. Allegro, a composition by Bear McCreary in Music of Battlestar Galactica. Allegro (film), a 2005 Danish film by Christoffer Boe. Allegro (musical), a 1947 musical by Rodgers and Hammerstein.
The chart on the right shows overlapping times. If you live in United States and you want to call a friend in Sweden, you can try calling them between 11:00 PM and 3:00 PM your time. This will be between 7AM - 11PM their time, since Sweden is 8 hours ahead of United States.
Time zones in Europe and dealing with the 24-hour clock. Most of Western Europe is six hours ahead of Eastern Standard Time (or one hour ahead of GMT, Greenwich Mean Time). That means when it's 1pm in New York and 10am in San Francisco, it's 7pm in Paris. Greece, much of Eastern Europe (Turkey, Romania, Bulgaria) and Finland are all seven hours ahead. The British Isles (including Ireland), Portugal, and Iceland are all five hours ahead of EST (one hour behind the rest of Western Europe) and are all on GMT (Greenwich Mean Time).