diff --git a/app/lib/admin/metrics/measure/active_users_measure.rb b/app/lib/admin/metrics/measure/active_users_measure.rb
index e6f09d4bc..c085ced62 100644
--- a/app/lib/admin/metrics/measure/active_users_measure.rb
+++ b/app/lib/admin/metrics/measure/active_users_measure.rb
@@ -22,12 +22,4 @@ class Admin::Metrics::Measure::ActiveUsersMeasure < Admin::Metrics::Measure::Bas
   def activity_tracker
     @activity_tracker ||= ActivityTracker.new('activity:logins', :unique)
   end
-
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
 end
diff --git a/app/lib/admin/metrics/measure/base_measure.rb b/app/lib/admin/metrics/measure/base_measure.rb
index e33a6c494..8b7fe39b5 100644
--- a/app/lib/admin/metrics/measure/base_measure.rb
+++ b/app/lib/admin/metrics/measure/base_measure.rb
@@ -86,11 +86,11 @@ class Admin::Metrics::Measure::BaseMeasure
   end
 
   def time_period
-    (@start_at..@end_at)
+    (@start_at.to_date..@end_at.to_date)
   end
 
   def previous_time_period
-    ((@start_at - length_of_period)..(@end_at - length_of_period))
+    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
   end
 
   def length_of_period
diff --git a/app/lib/admin/metrics/measure/instance_accounts_measure.rb b/app/lib/admin/metrics/measure/instance_accounts_measure.rb
index 746780ee7..889a5e6f0 100644
--- a/app/lib/admin/metrics/measure/instance_accounts_measure.rb
+++ b/app/lib/admin/metrics/measure/instance_accounts_measure.rb
@@ -48,14 +48,6 @@ class Admin::Metrics::Measure::InstanceAccountsMeasure < Admin::Metrics::Measure
     SQL
   end
 
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
-
   def params
     @params.permit(:domain, :include_subdomains)
   end
diff --git a/app/lib/admin/metrics/measure/instance_followers_measure.rb b/app/lib/admin/metrics/measure/instance_followers_measure.rb
index 0693d5a64..fa934c6b9 100644
--- a/app/lib/admin/metrics/measure/instance_followers_measure.rb
+++ b/app/lib/admin/metrics/measure/instance_followers_measure.rb
@@ -49,14 +49,6 @@ class Admin::Metrics::Measure::InstanceFollowersMeasure < Admin::Metrics::Measur
     SQL
   end
 
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
-
   def params
     @params.permit(:domain, :include_subdomains)
   end
diff --git a/app/lib/admin/metrics/measure/instance_follows_measure.rb b/app/lib/admin/metrics/measure/instance_follows_measure.rb
index 90d381935..3f3ab73fc 100644
--- a/app/lib/admin/metrics/measure/instance_follows_measure.rb
+++ b/app/lib/admin/metrics/measure/instance_follows_measure.rb
@@ -49,14 +49,6 @@ class Admin::Metrics::Measure::InstanceFollowsMeasure < Admin::Metrics::Measure:
     SQL
   end
 
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
-
   def params
     @params.permit(:domain, :include_subdomains)
   end
diff --git a/app/lib/admin/metrics/measure/instance_media_attachments_measure.rb b/app/lib/admin/metrics/measure/instance_media_attachments_measure.rb
index 89f8b4149..996ca52e0 100644
--- a/app/lib/admin/metrics/measure/instance_media_attachments_measure.rb
+++ b/app/lib/admin/metrics/measure/instance_media_attachments_measure.rb
@@ -58,14 +58,6 @@ class Admin::Metrics::Measure::InstanceMediaAttachmentsMeasure < Admin::Metrics:
     SQL
   end
 
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
-
   def params
     @params.permit(:domain, :include_subdomains)
   end
diff --git a/app/lib/admin/metrics/measure/instance_reports_measure.rb b/app/lib/admin/metrics/measure/instance_reports_measure.rb
index 5f58387a6..ae1bb6e68 100644
--- a/app/lib/admin/metrics/measure/instance_reports_measure.rb
+++ b/app/lib/admin/metrics/measure/instance_reports_measure.rb
@@ -49,14 +49,6 @@ class Admin::Metrics::Measure::InstanceReportsMeasure < Admin::Metrics::Measure:
     SQL
   end
 
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
-
   def params
     @params.permit(:domain, :include_subdomains)
   end
diff --git a/app/lib/admin/metrics/measure/instance_statuses_measure.rb b/app/lib/admin/metrics/measure/instance_statuses_measure.rb
index 5873c6e71..324d427b1 100644
--- a/app/lib/admin/metrics/measure/instance_statuses_measure.rb
+++ b/app/lib/admin/metrics/measure/instance_statuses_measure.rb
@@ -58,14 +58,6 @@ class Admin::Metrics::Measure::InstanceStatusesMeasure < Admin::Metrics::Measure
     Mastodon::Snowflake.id_at(@end_at.end_of_day, with_random: false)
   end
 
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
-
   def params
     @params.permit(:domain, :include_subdomains)
   end
diff --git a/app/lib/admin/metrics/measure/interactions_measure.rb b/app/lib/admin/metrics/measure/interactions_measure.rb
index 7a2b7e0fa..f4b4836b4 100644
--- a/app/lib/admin/metrics/measure/interactions_measure.rb
+++ b/app/lib/admin/metrics/measure/interactions_measure.rb
@@ -22,12 +22,4 @@ class Admin::Metrics::Measure::InteractionsMeasure < Admin::Metrics::Measure::Ba
   def activity_tracker
     @activity_tracker ||= ActivityTracker.new('activity:interactions', :basic)
   end
-
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
 end
diff --git a/app/lib/admin/metrics/measure/tag_accounts_measure.rb b/app/lib/admin/metrics/measure/tag_accounts_measure.rb
index 8f4512efe..906277b7d 100644
--- a/app/lib/admin/metrics/measure/tag_accounts_measure.rb
+++ b/app/lib/admin/metrics/measure/tag_accounts_measure.rb
@@ -27,14 +27,6 @@ class Admin::Metrics::Measure::TagAccountsMeasure < Admin::Metrics::Measure::Bas
     @tag ||= Tag.find(params[:id])
   end
 
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
-
   def params
     @params.permit(:id)
   end
diff --git a/app/lib/admin/metrics/measure/tag_uses_measure.rb b/app/lib/admin/metrics/measure/tag_uses_measure.rb
index bce86b89f..2be96a02b 100644
--- a/app/lib/admin/metrics/measure/tag_uses_measure.rb
+++ b/app/lib/admin/metrics/measure/tag_uses_measure.rb
@@ -27,14 +27,6 @@ class Admin::Metrics::Measure::TagUsesMeasure < Admin::Metrics::Measure::BaseMea
     @tag ||= Tag.find(params[:id])
   end
 
-  def time_period
-    (@start_at.to_date..@end_at.to_date)
-  end
-
-  def previous_time_period
-    ((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
-  end
-
   def params
     @params.permit(:id)
   end