diff --git a/libowlps/owlps.h b/libowlps/owlps.h
index 92ed52a..e34de50 100644
--- a/libowlps/owlps.h
+++ b/libowlps/owlps.h
@@ -108,6 +108,7 @@ typedef struct _owl_request_info
 {
   uint16_t packet_id ; // Number of the current packet
   uint8_t ap_mac_addr_bytes[ETHER_ADDR_LEN] ; // MAC of the listener
+  owl_timestamp capture_time ; // Timestamp of arrival on the listener
   uint8_t ss_dbm ; // Signal strength measured by the listener (dBm)
 } owl_request_info ;
 
diff --git a/owlps-aggregator/owlps-aggregator.h b/owlps-aggregator/owlps-aggregator.h
index 95f2fff..e9935d5 100644
--- a/owlps-aggregator/owlps-aggregator.h
+++ b/owlps-aggregator/owlps-aggregator.h
@@ -39,6 +39,8 @@ typedef struct _request_info_list
   uint16_t packet_id ;
   // MAC address of the transmitter AP (in bytes):
   uint8_t ap_mac_addr_bytes[ETHER_ADDR_LEN] ;
+  // Timestamp of arrival on the listener:
+  owl_timestamp capture_time ;
   // Signal strength received by the AP from the mobile:
   uint8_t ss_dbm ;
   struct _request_info_list *next ;
diff --git a/owlps-aggregator/owlps-aggregatord.c b/owlps-aggregator/owlps-aggregatord.c
index fad10c0..0c5cfd9 100644
--- a/owlps-aggregator/owlps-aggregatord.c
+++ b/owlps-aggregator/owlps-aggregatord.c
@@ -705,6 +705,8 @@ void* monitor_requests(void *NULL_value)
                       memcpy(info.ap_mac_addr_bytes,
                              request_info_ptr->ap_mac_addr_bytes,
                              ETHER_ADDR_LEN) ;
+                      info.capture_time = request_info_ptr->capture_time ;
+                      owl_hton_timestamp(&info.capture_time) ;
                       info.ss_dbm = request_info_ptr->ss_dbm ;
                       sendto(sockfd, &info, sizeof(info),
                              0, (struct sockaddr *)&serv, serv_len) ;
@@ -788,6 +790,7 @@ void got_request(owl_captured_request request)
   tmp_info->packet_id = request.packet_id ;
   memcpy(tmp_info->ap_mac_addr_bytes, request.ap_mac_addr_bytes,
          ETHER_ADDR_LEN) ;
+  tmp_info->capture_time = request.capture_time ;
   tmp_info->ss_dbm = request.ss_dbm ;
   tmp_info->next = NULL ;
 
diff --git a/owlps-positioner/src/inputudpsocket.cc b/owlps-positioner/src/inputudpsocket.cc
index 9cb64c5..1000cd5 100644
--- a/owlps-positioner/src/inputudpsocket.cc
+++ b/owlps-positioner/src/inputudpsocket.cc
@@ -190,6 +190,9 @@ bool InputUDPSocket::fill_current_request()
         owl_mac_bytes_to_string(request_info.ap_mac_addr_bytes)) ;
       PosUtil::to_upper(mac_ap) ;
 
+      owl_ntoh_timestamp(&request_info.capture_time) ;
+      Timestamp capture_time(request_info.capture_time) ;
+
       // Substracting 256 is not mandatory here since it is done
       // automatically when casting from unsigned to signed, but
       // I write it anyway for the sake of clarity.
@@ -200,6 +203,7 @@ bool InputUDPSocket::fill_current_request()
             << "\t* Packet received from the aggregator:"
             << "\n\t\tPacket number: " << packet_id
             << "\n\t\tAP MAC: " << mac_ap
+            << "\n\t\tCapture timestamp: " << capture_time
             << "\n\t\tSignal: "
             << ss << " dBm"
             << '\n' ;