diff --git a/ZMQ-Message-Reference.md b/ZMQ-Message-Reference.md
index 2926555..4a0dc3e 100644
--- a/ZMQ-Message-Reference.md
+++ b/ZMQ-Message-Reference.md
@@ -74,13 +74,76 @@ Data is a JSON scan request (see '[scanRequest](#scanrequest)' below). For examp
 
 Reply Messages:
 - `["status","ok"]`
-- ['estimatedTime',   NumberOfSeconds ]
+- ['estimatedTime',   Time_String ]
+
+A Time_String will have a format like "00h 00m 01s", or "555h 59m 59s".
 
 ## 'scanRequest'
 
 Data is a JSON scan request. For example:
 ```
-    msg = ['estimatedTime',   "{'scanType': 'Sample', 'spatialType': 'Image', 'meander': 1, 'tiling': 1, 'yAxisFast': 0, 'lineMode': 'Constant Velocity', 'accelerationDistance': 0.5, 'tileDelay': 0.05, 'lineDelay': 0.05, 'outerRegions': [{'dwellTime': 0.005, 'axes': [{'nPoints': 2, 'trajectories': [{'start': 900.0, 'end': 320.0, 'range': -580.0, 'step': -580.0, 'positionerName': 'Energy'}]}]}], 'innerRegions': [{'axes': [{'nPoints': 1200, 'trajectories': [{'center': 4282.670215322501, 'range': 12.0, 'step': 0.01, 'positionerName': 'FineY'}]}, {'nPoints': 140, 'trajectories': [{'center': 37.8280758446287, 'range': 28.0, 'step': 0.2, 'positionerName': 'FineX'}]}]}, {'axes': [{'nPoints': 10, 'trajectories': [{'center': 5571.33258869908, 'range': 1.0, 'step': 0.1, 'positionerName': 'FineY'}]}, {'nPoints': 10, 'trajectories': [{'center': -5400.94023907363, 'range': 1.0, 'step': 0.1, 'positionerName': 'FineX'}]}]}], 'nOuterRegions': 1, 'nInnerRegions': 1, 'singleOuterRegionValue': 1, 'displayedAxes': {'x': {'region': 'inner', 'index': 1}, 'y': {'region': 'inner', 'index': 0}}, 'positionPrecision': {'precision': 200.0}, 'defocus': {'diameter': 0.0}}" ]
+    msg = ['estimatedTime',   "{
+      'scanType': 'Sample',
+      'spatialType': 'Image',
+      'meander': 1, 
+      'tiling': 1, 
+      'yAxisFast': 0, 
+      'lineMode': 'Constant Velocity', 
+      'accelerationDistance': 0.5, 
+      'tileDelay': 0.05, 'lineDelay': 0.05, 
+      'outerRegions': [{'dwellTime': 0.005, 
+                                     'axes': [{'nPoints': 2, 
+                                     'trajectories': [{'start': 900.0, 
+                                                                'end': 320.0, 
+                                                                'range': -580.0, 
+                                                                'step': -580.0, 
+                                                                'positionerName': 'Energy'
+                                                              }]
+                                                 }]
+                                  }], 
+      'innerRegions': [{'axes': [{'nPoints': 1200, 
+                                                   'trajectories': [{'center': 4282.670215322501, 
+                                                                              'range': 12.0, 'step': 0.01, 
+                                                                              'positionerName': 'FineY'
+                                                                            }]
+                                                  },
+                                                  {'nPoints': 140, 
+                                                  'trajectories': [{'center': 37.8280758446287, 
+                                                                             'range': 28.0, 
+                                                                             'step': 0.2, 
+                                                                             'positionerName': 'FineX'
+                                                                           }]
+                                                  }]
+                                   },
+                                   {'axes': [{'nPoints': 10, 
+                                                   'trajectories': [{'center': 5571.33258869908, 
+                                                                              'range': 1.0, 
+                                                                              'step': 0.1, 
+                                                                              'positionerName': 'FineY'
+                                                                           }]
+                                                  },
+                                                  {'nPoints': 10, 
+                                                  'trajectories': [{'center': -5400.94023907363, 
+                                                                             'range': 1.0, 
+                                                                             'step': 0.1, 
+                                                                             'positionerName': 'FineX'
+                                                                           }]
+                                                  }]
+                                  }],
+                                  'nOuterRegions': 1, 
+                                  'nInnerRegions': 1, 
+                                  'singleOuterRegionValue': 1, 
+                                  'displayedAxes': {'x': {'region': 'inner', 
+                                                                        'index': 1
+                                                                       }, 
+                                                                 'y': {'region': 'inner', 
+                                                                        'index': 0
+                                                                        }
+                                                                 },
+                                  'positionPrecision': {'precision': 200.0}, 
+                                  'defocus': {'diameter': 0.0}
+      }"
+]
 ```
 
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