United Kingdom

 Russia

January 1 - New Years Day
January 2 - (Scotland Only)
March 17 - St Patricks Day Northern Ireland only
Variable date - Good Friday
Variable date - Easter Sunday
Easter Monday - (not Scotland)
Early May Bank Holiday (first Monday in May)
May 9 - Liberation Day (Jersey, Guernsey)
Spring Bank Holiday (last Monday in May) - See Bank Holiday
July 5 - Tynwald Day (Isle of Man)
July 12 - Battle of the Boyne, otherwise known as "Orangemans Day" and, more popularly, "The Twelfth". Northern Ireland only
August Bank Holiday - Scotland (First Monday in August)
August Bank Holiday - England and Wales (Last Monday in August)
December 24 - Christmas Eve
December 25 - Christmas Day
December 26 - Boxing Day

January 1 New Year
January 7 Christmas
January 14 New Year according to Julian Calendar
January 25 Tatiana Day
February 14 Valentines Day
February 23 Defender of the Fatherland Day
March 8 International Womens Day
A week before the Great Lent Maslenitsa
April Easter
May 1 Spring and Labour Day
May 9 Victory Day
June 12 Russia Day
July 7 Ivan Kupala (St. John the Baptists Day)
August Troitsa (the Trinity)
November 4 Unity Day