How to group facets (Facet API) by day for date fields? How to group facets (Facet API) by day for date fields?
Currently I have a custom date field indexed by Search API Solr.

I want to group this values by day, for example:

Friday 26 june
-08:30
-08:45
Saturday 27 june
-08:30
Sunday 28 june
-08:30
Use the numeric_groups module. It is a sandbox project.