diff --git a/api/stats/rtc_stats_report.h b/api/stats/rtc_stats_report.h
index 1cc6293fec..8678eb35bf 100644
--- a/api/stats/rtc_stats_report.h
+++ b/api/stats/rtc_stats_report.h
@@ -63,16 +63,20 @@ class RTC_EXPORT RTCStatsReport final
   // TODO(bugs.webrtc.org/13756): deprecate this in favor of Timestamp.
   // TODO(hbos): Remove "= 0" once downstream has been updated to call with a
   // parameter.
+  ABSL_DEPRECATED("Call Create with Timestamp instead")
   static rtc::scoped_refptr<RTCStatsReport> Create(int64_t timestamp_us = 0);
   static rtc::scoped_refptr<RTCStatsReport> Create(Timestamp timestamp);
 
   // TODO(bugs.webrtc.org/13756): deprecate this in favor of Timestamp.
+  ABSL_DEPRECATED("Use constructor with Timestamp instead")
   explicit RTCStatsReport(int64_t timestamp_us);
   explicit RTCStatsReport(Timestamp timestamp);
 
   RTCStatsReport(const RTCStatsReport& other) = delete;
   rtc::scoped_refptr<RTCStatsReport> Copy() const;
 
+  // TODO(bugs.webrtc.org/13756): deprecate this in favor of Timestamp.
+  ABSL_DEPRECATED("Call timestamp() instead")
   int64_t timestamp_us() const { return timestamp_.us_or(-1); }
   Timestamp timestamp() const { return timestamp_; }
   void AddStats(std::unique_ptr<const RTCStats> stats);
diff --git a/pc/peer_connection_integrationtest.cc b/pc/peer_connection_integrationtest.cc
index 5d1820d6c9..1d1bec3e93 100644
--- a/pc/peer_connection_integrationtest.cc
+++ b/pc/peer_connection_integrationtest.cc
@@ -2434,7 +2434,7 @@ TEST_P(PeerConnectionIntegrationTestWithFakeClock,
 
   // The fake clock ensures that no time has passed so the cache must have been
   // explicitly invalidated.
-  EXPECT_EQ(first_report->timestamp_us(), second_report->timestamp_us());
+  EXPECT_EQ(first_report->timestamp(), second_report->timestamp());
 }
 
 TEST_P(PeerConnectionIntegrationTestWithFakeClock,
@@ -2478,7 +2478,7 @@ TEST_P(PeerConnectionIntegrationTestWithFakeClock,
 
   // The fake clock ensures that no time has passed so the cache must have been
   // explicitly invalidated.
-  EXPECT_EQ(first_report->timestamp_us(), second_report->timestamp_us());
+  EXPECT_EQ(first_report->timestamp(), second_report->timestamp());
 }
 
 #endif  // !defined(THREAD_SANITIZER)
diff --git a/stats/rtc_stats_report.cc b/stats/rtc_stats_report.cc
index f6fbd8c44d..e6885dc020 100644
--- a/stats/rtc_stats_report.cc
+++ b/stats/rtc_stats_report.cc
@@ -56,7 +56,8 @@ bool RTCStatsReport::ConstIterator::operator!=(
 
 rtc::scoped_refptr<RTCStatsReport> RTCStatsReport::Create(
     int64_t timestamp_us) {
-  return rtc::scoped_refptr<RTCStatsReport>(new RTCStatsReport(timestamp_us));
+  return rtc::scoped_refptr<RTCStatsReport>(
+      new RTCStatsReport(Timestamp::Micros(timestamp_us)));
 }
 
 rtc::scoped_refptr<RTCStatsReport> RTCStatsReport::Create(Timestamp timestamp) {
diff --git a/stats/rtc_stats_report_unittest.cc b/stats/rtc_stats_report_unittest.cc
index b69da62f08..ded0c27609 100644
--- a/stats/rtc_stats_report_unittest.cc
+++ b/stats/rtc_stats_report_unittest.cc
@@ -55,7 +55,6 @@ WEBRTC_RTCSTATS_IMPL(RTCTestStats3, RTCStats, "test-stats-3", &string)
 TEST(RTCStatsReport, AddAndGetStats) {
   rtc::scoped_refptr<RTCStatsReport> report =
       RTCStatsReport::Create(Timestamp::Micros(1337));
-  EXPECT_EQ(report->timestamp_us(), 1337u);
   EXPECT_EQ(report->timestamp().us_or(-1), 1337u);
   EXPECT_EQ(report->size(), static_cast<size_t>(0));
   report->AddStats(
@@ -140,7 +139,6 @@ TEST(RTCStatsReport, Take) {
 TEST(RTCStatsReport, TakeMembersFrom) {
   rtc::scoped_refptr<RTCStatsReport> a =
       RTCStatsReport::Create(Timestamp::Micros(1337));
-  EXPECT_EQ(a->timestamp().us(), 1337u);
   EXPECT_EQ(a->timestamp().us_or(-1), 1337u);
   a->AddStats(
       std::unique_ptr<RTCStats>(new RTCTestStats1("B", Timestamp::Micros(1))));
@@ -150,7 +148,6 @@ TEST(RTCStatsReport, TakeMembersFrom) {
       std::unique_ptr<RTCStats>(new RTCTestStats1("E", Timestamp::Micros(4))));
   rtc::scoped_refptr<RTCStatsReport> b =
       RTCStatsReport::Create(Timestamp::Micros(1338));
-  EXPECT_EQ(b->timestamp_us(), 1338u);
   EXPECT_EQ(b->timestamp().us_or(-1), 1338u);
   b->AddStats(
       std::unique_ptr<RTCStats>(new RTCTestStats1("A", Timestamp::Micros(0))));