UTC+01:00

UTC+01:00 is an identifier for a time offset from UTC of +01:00. In ISO 8601, the associated time would be written as 2019-02-07T23:28:34+01:00. It indicates a point of time meaning Greenwich Mean Time plus one hour. It is synonym with British Summer Time.
This time is used in:

Central European Time (Northern Hemisphere winter)

Principal cities: Berlin, Budapest, Frankfurt, Munich, Hamburg, Cologne, Düsseldorf, Stuttgart, Leipzig, Dortmund, Essen, Bremen, Hanover, Mainz, Rome, Milan, Naples, Venice, Florence, Palermo, Turin, Genoa, Vatican City, San Marino, Paris, Marseille, Bordeaux, Nantes, Lyon, Lille, Montpellier, Toulouse, Strasbourg, Nice, Monaco, Madrid, Barcelona, Valencia, Seville, Málaga, Bilbao, A Coruña, Granada, Andorra, Vienna, Salzburg, Innsbruck, Zürich, Geneva, Bern, Bellinzona, Lausanne, Lucerne, St. Gallen, Brussels, Antwerp, Amsterdam, Rotterdam, Luxembourg, Valletta, Copenhagen, Stockholm, Oslo, Warsaw, Prague, Zagreb, Tirana, Sarajevo, Pristina, Podgorica, Skopje, Belgrade, Bratislava, Ljubljana, Vaduz, Schaan, Serravalle, Dogana, Monte Carlo, Monaco-Ville, Monaco, Westside, St. Paul's Bay, Malmö.

Europe

Central Europe

Antarctica

Western European Summer Time (Northern Hemisphere summer)

Principal cities: London, Birmingham, Manchester, Edinburgh, Liverpool, Bristol, Belfast, Glasgow, Cardiff, Dublin, Cork, Limerick, Las Palmas de Gran Canaria, Santa Cruz de Tenerife, Lisbon, Porto, Braga, Tórshavn

Europe

Western Europe

Atlantic Ocean

Portugal
*Madeira
Spain
*Canary Islands GMT±0

As standard time (year-round)

Principal cities: Lagos, Abuja, Kinshasa, Algiers, Tunis, Rabat, Casablanca, Tangier, Marrakesh, Yaoundé, Fez, Douala, Malabo, Bata, Libreville, Niamey, Tangier, N'Djamena, Bangui, Porto-Novo, Cotonou, Luanda, Laayoune

Africa

West Africa

Algeria
Angola
Benin
Cameroon
Central African Republic
Chad
Democratic Republic of the Congo:
*The provinces of Bandundu, Équateur, Kinshasa, Kongo Central, Kwango, Kwilu, Mai-Ndombe, Mongala, Nord-Ubangi, Sud-Ubangi and Tshuapa
Republic of the Congo
Equatorial Guinea
Gabon
Morocco
Niger
Nigeria
Tunisia

Discrepancies between official UTC+01:00 and geographical UTC+01:00

Areas in UTC+01:00 longitudes using UTC+02:00

From south to north:

South Africa
* The westernmost part, including Cape Town
Botswana
* The western part of the districts:
** Kgalagadi
** Ghanzi
** Ngamiland
Democratic Republic of the Congo
* The very westernmost part of Lualaba Province, Kasaï-Central and Sankuru
Libya
* The most part in the country, including nation's capital Tripoli
Greece
* The western part, including Patras and Ioanina
Romania
* The westernmost part, including Timișoara
Russia
* Kaliningrad Oblast
Lithuania
* The westernmost part, including Klaipėda
Latvia
* The westernmost part, including Liepāja
Estonia
* The westernmost parts of the Saare and Hiiu counties
Finland
* The westernmost part, including Turku

Areas outside UTC+01:00 longitudes using UTC+01:00 time

Areas between meridians 7°30'W and 7°30'E ("physical" UTC+00:00)

All of:

Andorra
Belgium
Gibraltar
Luxembourg
Monaco
Netherlands
Benin

Most of:

Spain, excluding Canary Islands and westernmost part of the mainland
France
Algeria, including Algiers

Parts of:

Equatorial Guinea
Morocco
Niger
Nigeria
Germany
Switzerland
Italy
Norway

Areas between meridians 22°30'W and 7°30'W ("physical" UTC−01:00)

Spain
* Parts of Galicia, Extremadura and Andalusia
Norway
* Jan Mayen
Morocco
* Southwestern part, including Casablanca
Western Sahara
* Most part in the territory