The UK and the USA are all English-speaking countries. However, the vocabulary, pronunciation and spelling of British English are different from those of American English. American English spelling is more phonetic. Also, the festival, the diet and the culture of the UK and the USA are different from each other.
The festival in the USA and the UK are similar, but some festivals in the USA don't exist in the UK.
New Year's Day (January 1)
Valentine’s Day (February 14)
St David’s Day (March 1)
St Patrick’s Day (March 17)
Easter (March 21-April 5)
Good Friday (Friday before Easter)
Lady's Day (March 25)
April Fool’s Day (April 1)
Queen's Birthday (April 21)
Shakespeare's Day (April 23)
May Day (May 1) / Labor Day (The first Monday in September)
Mothers' Day (the Second Sunday in May)
Halloween (October 31)
Hallowmas (November 1)
Christmas Eve (December 24)
Christmas Day (December 25)
Boxing Day (December 26)
In the UK there is a kind of breakfast called Continental Breakfast, and a kind of lunch called Sunday lunch. The British often eat potatoes and French fries, which the British call "chips". The American people is made up of immigrants, so they eat food from all over the world, like French fries, spaghetti, pizza, hamburger and hot dog. A lot of food comes from foreign countries, so you can't pronounce them with phonics. Dinner is considered as the biggest meal of the day, and they have appetizers, soup, entree, salad, dessert and beverages. There are all kinds of food, like French food, Asian food, Californian food, Pennsylvanian food, Louisianan food, etc.
In the USA there are four time zones, while in Britain, there is only one time zone. What you often hear the British and American people say are: "Allow me", "Excuse me", "Sorry", "Thank you".
Whichever country you go to--be it the UK or the USA, please remember, when in Rome, do as the Romans do!