diff --git a/lib/puppet/util/profiler/aggregate.rb b/lib/puppet/util/profiler/aggregate.rb
index 20b568ce4e7..f18f52bcde0 100644
--- a/lib/puppet/util/profiler/aggregate.rb
+++ b/lib/puppet/util/profiler/aggregate.rb
@@ -72,11 +72,11 @@ def add_time(time)
 
   class Timer
     def initialize
-      @start = Time.now
+      @start = Process.clock_gettime(Process::CLOCK_MONOTONIC, :float_second)
     end
 
     def stop
-      Time.now - @start
+      Process.clock_gettime(Process::CLOCK_MONOTONIC, :float_second) - @start
     end
   end
 end
diff --git a/lib/puppet/util/profiler/wall_clock.rb b/lib/puppet/util/profiler/wall_clock.rb
index 090c20476a5..8277cba78f9 100644
--- a/lib/puppet/util/profiler/wall_clock.rb
+++ b/lib/puppet/util/profiler/wall_clock.rb
@@ -21,11 +21,11 @@ class Timer
     FOUR_DECIMAL_DIGITS = '%0.4f'
 
     def initialize
-      @start = Time.now
+      @start = Process.clock_gettime(Process::CLOCK_MONOTONIC, :float_second)
     end
 
     def stop
-      @time = Time.now - @start
+      @time = Process.clock_gettime(Process::CLOCK_MONOTONIC, :float_second) - @start
       @time
     end