May and Juncker would sit down at 5:30 p.m. (1630 GMT), the Commission said.
EU states are expected to finalize their work on a political declaration on the bloc’s future ties with Britain after Brexit. National envoys are due to meet the Commission’s negotiators on Tuesday evening to discuss a text.
The declaration is to accompany the UK’s withdrawal agreement which EU leaders hope to rubber-stamp at a summit this Sunday, which May will also attend.