Time geography is a phrase used to describe a new field of study that graphs out time and space spent doing certain activities over time. It was founded in 1970, and was recently revisited to include mapping techniques for internet communication technologies where geography is not necessarily bound to visibly adjacent territory.
Swedish Geographer Hägerstrand, Torsten is known as the developer of Time Geography.
Hägerstrand, Torsten (1953). Innovationsförloppet ur korologisk synpunkt, C.W.K Gleerup, Lund, Sweden. Translated as Innovation Diffusion As a Spatial Process, Chicago, University of Chicago Press, 1967
"Space, time and human conditions." Dynamic allocation of urban space, ed. A. Karlqvist et al. (Lexington: Saxon House Lexington Book, 1975)