UNIVERSITY OF CALIFORNIA, IRVINE English & Certificate Programs for Internationals Live, Learn, and Enjoy on the Southern California Coast Post-graduate certificates in 12 months -- Electronic Business -- Global Operations Management -- Marketing -- Comunications/Networking Engineering -- Teaching English as a Foreign Language -- Advanced Software Technologies -6 months (focus on Java - 3 months) -- Digital Arts English Language Programs 4-week Business English or Conversation & Culture- Jan, Feb, July, Aug -- 10-week Intensive ESL -Jan, Apr, June, Sept How long is the Business English programme?