diff --git a/payload_consumer/delta_performer.cc b/payload_consumer/delta_performer.cc
index 80a423c..2834e61 100644
--- a/payload_consumer/delta_performer.cc
+++ b/payload_consumer/delta_performer.cc
@@ -261,7 +261,7 @@
 
   // Update chunk index, log as needed: if forced by called, or we completed a
   // progress chunk, or a timeout has expired.
-  base::Time curr_time = base::Time::Now();
+  base::TimeTicks curr_time = base::TimeTicks::Now();
   unsigned curr_progress_chunk =
       overall_progress_ * kProgressLogMaxChunks / 100;
   if (force_log || curr_progress_chunk > last_progress_chunk_ ||
@@ -1905,7 +1905,7 @@
 }
 
 bool DeltaPerformer::CheckpointUpdateProgress(bool force) {
-  base::Time curr_time = base::Time::Now();
+  base::TimeTicks curr_time = base::TimeTicks::Now();
   if (force || curr_time > update_checkpoint_time_) {
     update_checkpoint_time_ = curr_time + update_checkpoint_wait_;
   } else {
diff --git a/payload_consumer/delta_performer.h b/payload_consumer/delta_performer.h
index 7f6fa9b..402e4be 100644
--- a/payload_consumer/delta_performer.h
+++ b/payload_consumer/delta_performer.h
@@ -399,13 +399,13 @@
   // and the actual point in time for the next forced log to be emitted.
   const base::TimeDelta forced_progress_log_wait_{
       base::TimeDelta::FromSeconds(kProgressLogTimeoutSeconds)};
-  base::Time forced_progress_log_time_;
+  base::TimeTicks forced_progress_log_time_;
 
   // The frequency that we should write an update checkpoint (constant), and
   // the point in time at which the next checkpoint should be written.
   const base::TimeDelta update_checkpoint_wait_{
       base::TimeDelta::FromSeconds(kCheckpointFrequencySeconds)};
-  base::Time update_checkpoint_time_;
+  base::TimeTicks update_checkpoint_time_;
 
   DISALLOW_COPY_AND_ASSIGN(DeltaPerformer);
 };
diff --git a/payload_generator/delta_diff_utils.cc b/payload_generator/delta_diff_utils.cc
index f93fb55..dc38c33 100644
--- a/payload_generator/delta_diff_utils.cc
+++ b/payload_generator/delta_diff_utils.cc
@@ -297,7 +297,7 @@
 
 void FileDeltaProcessor::Run() {
   TEST_AND_RETURN(blob_file_ != nullptr);
-  base::Time start = base::Time::Now();
+  base::TimeTicks start = base::TimeTicks::Now();
 
   if (!DeltaReadFile(&file_aops_,
                      old_part_,
@@ -326,8 +326,7 @@
   }
 
   LOG(INFO) << "Encoded file " << name_ << " (" << new_extents_blocks_
-            << " blocks) in " << (base::Time::Now() - start).InSecondsF()
-            << " seconds.";
+            << " blocks) in " << (base::TimeTicks::Now() - start);
 }
 
 bool FileDeltaProcessor::MergeOperation(vector<AnnotatedOperation>* aops) {