Well, I dont know if it is right or not, but it is the timeslot Martina intended. (We are meeting at that timeslot Thursdays at 19:00Z for the main Council meetings.)
The dates are just samples, though. 07 means 1 week before the Council meetings, , 21 means 1 week after the Council meetings, and 28 means 2 weeks after the Council meetings.
Is the timeslot right? It's showing as 11am for me, which would be five hours later than usual.