diff --git a/src/exchange-lib/exchange_api_track_transfer.c b/src/exchange-lib/exchange_api_track_transfer.c
index c37fbf5a5..ffcb19b59 100644
--- a/src/exchange-lib/exchange_api_track_transfer.c
+++ b/src/exchange-lib/exchange_api_track_transfer.c
@@ -145,6 +145,7 @@ check_track_transfer_response_ok (struct TALER_EXCHANGE_TrackTransferHandle *wdh
       }
       /* build up big hash for signature checking later */
       dd.h_contract = detail->h_contract;
+      dd.execution_time = GNUNET_TIME_absolute_hton (exec_time);
       dd.transaction_id = GNUNET_htonll (detail->transaction_id);
       dd.coin_pub = detail->coin_pub;
       TALER_amount_hton (&dd.deposit_value,
diff --git a/src/exchange/taler-exchange-httpd_responses.c b/src/exchange/taler-exchange-httpd_responses.c
index 47a709a67..8ad934e07 100644
--- a/src/exchange/taler-exchange-httpd_responses.c
+++ b/src/exchange/taler-exchange-httpd_responses.c
@@ -1201,11 +1201,13 @@ TMH_RESPONSE_reply_track_transfer_details (struct MHD_Connection *connection,
   struct TALER_ExchangePublicKeyP pub;
   struct TALER_ExchangeSignatureP sig;
 
+  GNUNET_TIME_round_abs (&exec_time);
   deposits = json_array ();
   hash_context = GNUNET_CRYPTO_hash_context_start ();
   for (wdd_pos = wdd_head; NULL != wdd_pos; wdd_pos = wdd_pos->next)
   {
     dd.h_contract = wdd_pos->h_contract;
+    dd.execution_time = GNUNET_TIME_absolute_hton (exec_time);
     dd.transaction_id = GNUNET_htonll (wdd_pos->transaction_id);
     dd.coin_pub = wdd_pos->coin_pub;
     TALER_amount_hton (&dd.deposit_value,
diff --git a/src/include/taler_signatures.h b/src/include/taler_signatures.h
index a4d599cd7..c294c73af 100644
--- a/src/include/taler_signatures.h
+++ b/src/include/taler_signatures.h
@@ -959,6 +959,11 @@ struct TALER_WireDepositDetailP
    */
   struct GNUNET_HashCode h_contract;
 
+  /**
+   * Time when the wire transfer was performed by the exchange.
+   */
+  struct GNUNET_TIME_AbsoluteNBO execution_time;
+
   /**
    * Merchant's transaction ID in NBO.
    */