"What time is it now in London?"
Translation:Сколько сейчас времени в Лондоне?
Calling it a catastrophe is quite unfair to the course contributors who have worked so hard on it. It's still in beta and it's generally very good already. No duolingo course accepts all possible correct answers, but these things improve over time if the users are constructive and file error reports.
Hear hear! I have started a lot of courses, and this one is remarkably good so far for a beta. It doesn't matter much if they don't accept something you know is right; just report it. At least they are not doing the "three mistakes and you start over" regime, so it doesn't slow down the process.