diff --git a/aosp/cleanup_previous_update_action.cc b/aosp/cleanup_previous_update_action.cc
index 6eaa35b..b447509 100644
--- a/aosp/cleanup_previous_update_action.cc
+++ b/aosp/cleanup_previous_update_action.cc
@@ -20,6 +20,7 @@
 #include <string>
 #include <type_traits>
 
+#include <android-base/chrono_utils.h>
 #include <android-base/properties.h>
 #include <base/bind.h>
 
@@ -181,6 +182,10 @@
     return;
   }
 
+  auto boot_time = std::chrono::duration_cast<std::chrono::milliseconds>(
+      android::base::boot_clock::now().time_since_epoch());
+  merge_stats_->set_boot_complete_time_ms(boot_time.count());
+
   LOG(INFO) << "Boot completed, waiting on markBootSuccessful()";
   CheckSlotMarkedSuccessfulOrSchedule();
 }
@@ -397,6 +402,11 @@
 
   snapshot_->UpdateCowStats(merge_stats_);
 
+  auto merge_start_time = std::chrono::duration_cast<std::chrono::milliseconds>(
+      android::base::boot_clock::now().time_since_epoch());
+  merge_stats_->set_boot_complete_to_merge_start_time_ms(
+      merge_start_time.count() - merge_stats_->boot_complete_time_ms());
+
   if (snapshot_->InitiateMerge()) {
     WaitForMergeOrSchedule();
     return;