diff --git a/src/osmo_gsm_tester/obj/iperf3.py b/src/osmo_gsm_tester/obj/iperf3.py
index 4ccbf42..e0e05d8 100644
--- a/src/osmo_gsm_tester/obj/iperf3.py
+++ b/src/osmo_gsm_tester/obj/iperf3.py
@@ -209,6 +209,7 @@
         self.server = iperf3srv
         self.testenv = testenv
         self._proto = None
+        self._time_sec = None
         self.log_file = None
         self.rem_host = None
         self.remote_log_file = None
@@ -237,6 +238,7 @@
             else:
                 time_sec = int(time_sec_str)
         assert(time_sec)
+        self._time_sec = time_sec
 
         if proto is None:
             proto = values.get('protocol', IPerf3Client.PROTO_TCP)
@@ -324,6 +326,9 @@
     def proto(self):
         return self._proto
 
+    def time_sec(self):
+        return self._time_sec
+
     def __str__(self):
         # FIXME: somehow differentiate between several clients connected to same server?
         return "%s:%u" %(self.server.addr(), self.server.port())