Prime Minister Theresa May spoke with the Dutch Prime Minister Mark Rutte, and with the Danish Prime Minister Lars-Lokke Rasmussen.
A Downing Street spokesperson said:
"The Prime Minister spoke by telephone yesterday to Dutch Prime Minister Mark Rutte, and to Danish Prime Minister Lars-Lokke Rasmussen.
"Both offered their congratulations on the Prime Minister’s appointment, and said they looked forward to working together closely.
"In both calls, the Prime Minister explained that we are keen to approach negotiations for Britain’s withdrawal from the European Union in a constructive and positive way. The Prime Minister said we would not be triggering Article 50 before the end of the year, which would provide time for both the UK, and the remaining EU 27, to prepare properly for the negotiations, helping to ensure a smooth and orderly departure of the UK from the EU. The Prime Minister made clear that the UK wanted a positive relationship both with the EU and bilaterally with its member states after we had left the EU."
Source: Gov.uk (Contains public sector information licensed under the Open Government Licence v3.0.)