diff --git a/lib/kennel/importer.rb b/lib/kennel/importer.rb
index ff7d63a..8cf55aa 100644
--- a/lib/kennel/importer.rb
+++ b/lib/kennel/importer.rb
@@ -3,7 +3,7 @@
 module Kennel
   class Importer
     TITLES = [:name, :title].freeze
-    SORT_ORDER = [*TITLES, :id, :kennel_id, :type, :tags, :query, *Models::Record.subclasses.map { |k| k::TRACKING_FIELDS }, :template_variables].freeze
+    SORT_ORDER = [*TITLES, :id, :kennel_id, :type, :tags, :query, :sli_specification, *Models::Record.subclasses.map { |k| k::TRACKING_FIELDS }, :template_variables].freeze
 
     def initialize(api)
       @api = api
@@ -19,10 +19,15 @@ def import(resource, id)
         raise(ArgumentError, "#{resource} is not supported")
 
       data = @api.show(model.api_resource, id)
+      # get sli specification before normalization.
+      sli_specification = data[:sli_specification] || data.dig(:sli_specification, :time_slice)
+
       id = data.fetch(:id) # keep native value
       model.normalize({}, data) # removes id
       data[:id] = id
 
+      data[:sli_specification] = sli_specification if sli_specification
+
       title_field = TITLES.detect { |f| data[f] }
       title = data.fetch(title_field)
       title.tr!(Kennel::Models::Record::LOCK, "") # avoid double lock icon
diff --git a/lib/kennel/models/slo.rb b/lib/kennel/models/slo.rb
index 9f64598..cf27aee 100644
--- a/lib/kennel/models/slo.rb
+++ b/lib/kennel/models/slo.rb
@@ -14,7 +14,7 @@ class Slo < Record
         thresholds: []
       }.freeze
 
-      settings :type, :description, :thresholds, :query, :tags, :monitor_ids, :monitor_tags, :name, :groups
+      settings :type, :description, :thresholds, :query, :tags, :monitor_ids, :monitor_tags, :name, :groups, :sli_specification
 
       defaults(
         tags: -> { @project.tags },
@@ -35,7 +35,9 @@ def build_json
           type: type
         )
 
-        if v = query
+        if type == 'time_slice'
+          data[:sliSpecification] = :sli_specification
+        elsif v = query
           data[:query] = v
         end
 
diff --git a/test/kennel/models/slo_test.rb b/test/kennel/models/slo_test.rb
index f28f958..1292da4 100644
--- a/test/kennel/models/slo_test.rb
+++ b/test/kennel/models/slo_test.rb
@@ -11,12 +11,15 @@ class TestSlo < Kennel::Models::Slo
 
   def slo(options = {})
     Kennel::Models::Slo.new(
+      type = options[:type] || "metric"
       options.delete(:project) || project,
-      {
-        type: -> { "metric" },
+      slo_options ={
+        type: -> { type },
         name: -> { "Foo" },
         kennel_id: -> { "m1" }
-      }.merge(options)
+      }
+      slo_options[:sliSpecification] = -> { options[:sliSpecification] } if type == "time_slice"
+      Kennel::Models::Slo.new(project, slo_options.merge(options))
     )
   end
 
@@ -59,6 +62,32 @@ def slo(options = {})
       )
     end
 
+    it "includes sliSpecification for time slices" do
+      sli_spec = {
+        timeSlice: {
+          query: {
+            formula: {
+              formulaExpression: "query1"
+            },
+            queries: [{
+              metricQuery: {
+                name: "query1",
+                query: "ewma_7(avg:system_cpu{} by {env})"
+              }
+            }]
+          },
+          comparator: "<=",
+          threshold: 40
+        }
+      }
+
+      expected_basic_json[:sliSpecification] = sli_spec
+      assert_json_equal(
+        slo(type: "time_slice", sli_specification: sli_spec).build_json,
+        expected_basic_json
+      )
+    end
+
     it "sets id when updating by id" do
       expected_basic_json[:id] = 123
       assert_json_equal(