diff --git a/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb b/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
index 5487341638a27562b2894e6cafe31aa7541d164c..209d38a49fbe09e332c0f393486ed9104e2c78b0 100644
--- a/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
+++ b/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
@@ -79,7 +79,7 @@
    "source": [
     "import os\n",
     "from collections import OrderedDict\n",
-    "from datetime import datetime\n",
+    "from datetime import datetime, timedelta\n",
     "from typing import Tuple\n",
     "\n",
     "import dateutil.parser\n",
@@ -192,15 +192,6 @@
     "print(f\"Detector instance {dinstance}\")"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "timestamp_before_processing = datetime.now().isoformat()"
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -679,7 +670,8 @@
     "        condition=condition,\n",
     "        empty_constant=None,\n",
     "        cal_db_interface=cal_db_interface,\n",
-    "        snapshot_at=timestamp_before_processing,\n",
+    "        creation_time=creation_time-timedelta(seconds=1),\n",
+    "        strategy=\"pdu_prior_in_time\",\n",
     "        verbosity=2,\n",
     "        timeout=cal_db_timeout\n",
     "    )\n",