Vremya i Steklo (Russian: Время и Стекло, lit. 'Time and Glass', a pun on phrase время истекло meaning 'time's up') was a Ukrainian pop duo formed in 2010 by Oleksiy Potapenko, consisting of Oleksiy "Positiff" Zavgorodniy and Nadiya Dorofeeva. They are best known for their energetic blend of electronic and pop music, which has earned them widespread recognition in Eastern Europe and beyond.

The duo performed as guests at numerous music events across Russia and Ukraine, such as Golden Gramophone, Crimea Music Fest or Slavic Bazaar, and together voiced lead roles in the animated film The Stolen Princess, also performing its theme song «До зірок» ("To The Stars").

The group broke up in 2020, following the release of "Forever/Never" (Ukrainian: «Назавжди/Ніколи») music video, after which they held their last tour, concluding on October 30, 2020.