It is possible to link two time dimensions with different accuracies, with the rougher accuracy used for linking. Valid accuracies are Day, Hour, and Minute.
Example
A solar energy power plant measures the solar energy generated and writes the result including time stamp (accuracy: minute) in a table. An energy provider pays daily for the energy generated (accuracy: day), which is listed in a second table.
In this example, the rougher accuracy of the two tables is Day, which is therefore used for the analysis. The finer measure amount (in W) is summarized based on the rougher accuracy. If you analyze January 1, 2013, the energy generated is summed up for this day with the following result.