Academic Calendar/12*4 weeks

Twelve 4-week blocks (months): quadmesters, semesters or trimesters (Northern hemisphere)

Period	Weeks	Description	Quart	Season	Trimester	Semester		Quadmester
W40/43	4	October	Q4	Fall	Fall, Michaelmas	Winter	Fall	Fall	Summer	Fall	Fall
W44/47	4	November							Winter
W48/51	4	December								Winter
W52/53	1–2	Christmas		Winter	break		break				break
W01/04	4	January	Q1		Winter, Hilary		Spring				Winter
W05/08	4	February						Spring
W09/12	4	March							Spring
W13	1	Easter		Spring	break	break				break
W14/17	4	April	Q2		Spring, Easter	Summer				Spring
W18/21	4	May									Summer
W22/25	4	June						Summer
W26	1	Pentecost		Summer	break		break		break
W27/30	4	July	Q3		Summer, Trinity		Fall		Summer
W31/34	4	August								Fall
W35/38	4	September									Fall
W39	1	Michaelmas		Fall	break	break		break