In the UK, it is currently

Tuesday the 13th of November, 2018 at 5:20am UK time

That's:
November 13, 2018, 5:20 am in Abidjan
November 13, 2018, 3:50 pm in Adelaide
November 13, 2018, 6:20 am in Amsterdam
November 13, 2018, 6:20 pm in Auckland
November 13, 2018, 6:20 am in Berlin
November 13, 2018, 1:20 am in Bermuda
November 13, 2018, 12:20 am in Bogota
November 13, 2018, 6:20 am in Bratislava
November 13, 2018, 3:20 am in Brasilia
November 13, 2018, 2:20 am in Buenos Aires
November 13, 2018, 1:20 am in Caracas
November 12, 2018, 11:20 pm in Chicago
November 13, 2018, 6:20 am in Copenhagen
November 12, 2018, 11:20 pm in Costa Rica
November 13, 2018, 9:20 am in Dubai
November 13, 2018, 5:20 am in Dublin
November 12, 2018, 11:20 pm in Guatemala
November 13, 2018, 7:20 am in Helsinki
November 13, 2018, 9:50 am in Kabul
November 13, 2018, 8:20 am in Kampala
November 13, 2018, 5:20 am in Lisbon
November 13, 2018, 6:20 am in Longyearbyen
November 12, 2018, 9:20 pm in Los Angeles
November 13, 2018, 6:20 am in Madrid
November 13, 2018, 1:20 am in Manaus
November 13, 2018, 1:20 pm in Manila
November 13, 2018, 8:20 am in Mayotte
November 13, 2018, 4:20 pm in Melbourne
November 12, 2018, 11:20 pm in Mexico City
November 13, 2018, 12:20 am in Montreal
November 13, 2018, 8:20 am in Moscow
November 13, 2018, 8:20 am in Nairobi
November 13, 2018, 12:20 am in New York
November 13, 2018, 6:20 am in Paris
November 13, 2018, 1:20 pm in Perth
November 13, 2018, 6:20 am in Podgorica
November 13, 2018, 8:20 am in Qatar
November 13, 2018, 3:20 pm in Queensland
November 13, 2018, 5:20 am in Reykjavik
November 13, 2018, 7:20 am in Riga
November 13, 2018, 6:20 am in Rome
November 13, 2018, 6:20 pm in the South Pole
November 13, 2018, 6:20 am in Stockholm
November 13, 2018, 12:20 am in Toronto
November 12, 2018, 9:20 pm in Vancouver
November 13, 2018, 4:20 pm in Victoria
November 13, 2018, 6:20 am in Vienna
November 13, 2018, 6:20 am in Warsaw
November 13, 2018, 6:20 am in Zurich

These time zones are provided for your convenience, but are not guaranteed. You may want to double check the time wherever you happen to be