93a60a57-a3c8-20da-a746-0800200c9a66 Units of area*time Technical unit groups Reference Unit Group Data Set of the International Reference Life Cycle Data System (ILCD). 0 ILCD Data Network - compliance (non-Process) Fully compliant 2012-01-04T15:33:14.875+01:00 ILCD format 03.00.003 Units of area*time http://lca.jrc.ec.europa.eu/lcainfohub/datasets/ilcd/unitgroups/93a60a57-a3c8-20da-a746-0800200c9a66.xml m2*a 1.0 Square metre times year (year approximated as 365 days) km2*a 1000000.0 Square kilometre times year ha*a 10000.0 Hectar times year ft2*a 0.09290304 British square foot times year mi2*a 2589988.1 International square mile times year m2*d 0.002739726 Square metre times day