Information from individual instructors (e.g., regarding exam colloquia or other dates) can be found on the respective instructor’s page.
Information on the UK Certificate starting in the 2021–2022 winter semester
UK introductory certificates starting in the winter semester 21/22 can be picked up immediately upon meeting the requirements by paying a nominal fee of €25 in cash at the office of Ms. Paffenholz (Klosterstraße 79b, 2nd floor, Room 17) during office hours (Tue–Thu 9 a.m.–2 p.m.).
There is no "expiration date," so the certificate will remain available for you as long as the requirements are met until you pick it up.