diff --git a/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb b/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
index 8aee1ac01698ad49dfa214d937779f92acb06c16..b711f75d6302ab066cf9f3264b0506a07c1c0216 100644
--- a/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
+++ b/notebooks/AGIPD/Characterize_AGIPD_Gain_Darks_NBC.ipynb
@@ -189,6 +189,15 @@
     "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,
@@ -666,13 +675,15 @@
     "    # TODO: Set db_module to \"\" by default in the first cell\n",
     "\n",
     "    data, mdata = get_from_db(\n",
-    "        karabo_id,\n",
-    "        qm_dict[qm][\"karabo_da\"],\n",
+    "        karabo_id=karabo_id,\n",
+    "        karabo_da=qm_dict[qm][\"karabo_da\"],\n",
     "        constant=dconst,\n",
     "        condition=condition,\n",
     "        empty_constant=None,\n",
     "        cal_db_interface=cal_db_interface,\n",
-    "        creation_time=creation_time,\n",
+    "        #creation_time=creation_time,\n",
+    "        snapshot_at=timestamp_before_processing,\n",
+    "        strategy=\"pdu_prior_in_time\",\n",
     "        verbosity=2,\n",
     "        timeout=cal_db_timeout\n",
     "    )\n",
diff --git a/src/cal_tools/tools.py b/src/cal_tools/tools.py
index f8cd5279a060407d065f8d166015d59b77de9a49..551bb3e48cb8f2564dbd7403263b831bbd992269 100644
--- a/src/cal_tools/tools.py
+++ b/src/cal_tools/tools.py
@@ -461,6 +461,7 @@ def get_from_db(karabo_id: str, karabo_da: str,
                 empty_constant: np.array,
                 cal_db_interface: str,
                 creation_time: Optional[datetime.datetime] = None,
+                snapshot_at: Optional[datetime.datetime] = None,
                 verbosity: int = 1,
                 timeout: int = 30000,
                 ntries: int = 7,
@@ -507,6 +508,9 @@ def get_from_db(karabo_id: str, karabo_da: str,
         if creation_time is not None and hasattr(creation_time, 'isoformat'):
             when = creation_time.isoformat()
 
+        if snapshot_at is not None and hasattr(snapshot_at, 'isoformat'):
+            snapshot_at = snapshot_at.isoformat()
+
         metadata.calibration_constant_version.karabo_id = karabo_id
         metadata.calibration_constant_version.karabo_da = karabo_da
 
@@ -522,7 +526,8 @@ def get_from_db(karabo_id: str, karabo_da: str,
                 r = metadata.retrieve(this_interface, timeout=timeout,
                                       when=when, meta_only=meta_only,
                                       version_info=version_info,
-                                      strategy=strategy)
+                                      strategy=strategy,
+                                      snapshot_at=snapshot_at)
                 if version_info:
                     return r
                 break