Black Friday date - are there multiple Black Fridays in a year ?

On what date are the Black Friday shopping sales ? Are there multiple Black Fridays during a year in US, UK or other countries in Europe ?

Black Friday is a shopping event that is originated in the US and later it has become international. It occurs on Friday following Thanksgiving Day in the United States. Thanksgiving Day is celebrated on the fourth Thursday of November, so there is not a fixed date for both.

In UK and many European countries, the Black Friday sales occur on the same date as in the US.

But in Europe, some retailers have multiple Black Friday sales during a year. These Black Friday sales often last more than one day and sometimes even more than a week.