Definition
A (convex) time interval I is the set of all time points between a starting point (usually denoted by I−) and an ending point (I+). Allen’s relations model all possible relative positions between two time intervals [1]. There are 13 different possibilities, depending on the relative positions of the endpoints of the intervals (Table 1).
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Allen J.F. Maintaining knowledge about temporal intervals. Commun. ACM, 26(11):832–843, 1983.
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Revesz, P., Terenziani, P. (2009). Allen’s Relations. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_1515
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