diff --git a/modules/congestion_controller/goog_cc/goog_cc_network_control.cc b/modules/congestion_controller/goog_cc/goog_cc_network_control.cc
index efd78b4170..6e4774d167 100644
--- a/modules/congestion_controller/goog_cc/goog_cc_network_control.cc
+++ b/modules/congestion_controller/goog_cc/goog_cc_network_control.cc
@@ -156,6 +156,7 @@ GoogCcNetworkController::GoogCcNetworkController(RtcEventLog* event_log,
       max_total_allocated_bitrate_(DataRate::Zero()),
       in_cwnd_experiment_(CwndExperimentEnabled()),
       accepted_queue_ms_(kDefaultAcceptedQueueMs) {
+  RTC_DCHECK(config.constraints.at_time.IsFinite());
   delay_based_bwe_->SetMinBitrate(congestion_controller::GetMinBitrateBps());
   if (in_cwnd_experiment_ &&
       !ReadCwndExperimentParameter(&accepted_queue_ms_)) {
diff --git a/rtc_tools/event_log_visualizer/analyzer.cc b/rtc_tools/event_log_visualizer/analyzer.cc
index 74acd62b58..b1a9734827 100644
--- a/rtc_tools/event_log_visualizer/analyzer.cc
+++ b/rtc_tools/event_log_visualizer/analyzer.cc
@@ -1087,6 +1087,7 @@ void EventLogAnalyzer::CreateSendSideBweSimulationGraph(Plot* plot) {
   // TODO(holmer): Log the call config and use that here instead.
   static const uint32_t kDefaultStartBitrateBps = 300000;
   NetworkControllerConfig cc_config;
+  cc_config.constraints.at_time = Timestamp::us(clock.TimeInMicroseconds());
   cc_config.constraints.starting_rate = DataRate::bps(kDefaultStartBitrateBps);
   auto goog_cc = factory.Create(cc_config);