Hide hour/minute in custom datetime_select

def my_datetime_select(form, field, opts \\ []) do
  builder = fn b ->
    ~e"""
    Date: <%= b.(:day, []) %> / <%= b.(:month, []) %> / <%= b.(:year, []) %>
    Time: <%= b.(:hour, []) %> : <%= b.(:minute, []) %>
    """
  end

  datetime_select(form, field, [builder: builder] ++ opts)
end

With this custom helper, how would I go about making the minute to be a hidden value?