IssueTracker

Here is what I found: On API 31+, time was not updated after the host was waken up. While on API 30 and under, time was updated after host was waken up. The main difference is caused by switching the modem simulator. In API 30 and under, time will be updated whenever signal strength query is received. Reference

Looking at the code in API 31+ for time update when signal strength query is received, I think it is possible that timeUpdate is not invoked

void NetworkService::HandleSignalStrength(const Client& client) {
  std::vector<std::string> responses;
  std::stringstream ss;

  if (WakeupFromSleep()) {
    misc_service_->TimeUpdate();
  } else if (first_signal_strength_request_) {
    first_signal_strength_request_ = false;
    misc_service_->TimeUpdate();
  }

  android_last_signal_time_ = time(0);

  auto response = BuildCSQCommandResponse(GetCurrentSignalStrength());

  responses.push_back(response);
  responses.push_back("OK");
  client.SendCommandResponse(responses);
}