diff --git a/example/generator/bundle.json b/example/generator/bundle.json
index cdb4736957..aba210982c 100644
--- a/example/generator/bundle.json
+++ b/example/generator/bundle.json
@@ -16,6 +16,12 @@
                 "implementation": "SinewaveLimitCapability.js"
             }
         ],
+        "format": [
+            {
+                "key": "example.delta",
+                "implementation": "SinewaveDeltaFormat.js"
+            }
+        ],
         "types": [
             {
                 "key": "generator",
@@ -38,6 +44,11 @@
                         {
                             "key": "yesterday",
                             "name": "Yesterday"
+                        },
+                        {
+                            "key": "delta",
+                            "name": "Delta",
+                            "format": "example.delta"
                         }
                     ],
                     "ranges": [
diff --git a/example/generator/src/SinewaveConstants.js b/example/generator/src/SinewaveConstants.js
new file mode 100644
index 0000000000..29136ebb99
--- /dev/null
+++ b/example/generator/src/SinewaveConstants.js
@@ -0,0 +1,26 @@
+/*****************************************************************************
+ * Open MCT Web, Copyright (c) 2014-2015, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT Web is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT Web includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+/*global define,Promise*/
+
+define({
+    START_TIME: Date.now() - 24 * 60 * 60 * 1000 // Now minus a day.
+});
diff --git a/example/generator/src/SinewaveDeltaFormat.js b/example/generator/src/SinewaveDeltaFormat.js
new file mode 100644
index 0000000000..026e1b2ba3
--- /dev/null
+++ b/example/generator/src/SinewaveDeltaFormat.js
@@ -0,0 +1,68 @@
+/*****************************************************************************
+ * Open MCT Web, Copyright (c) 2014-2015, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT Web is licensed under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * Open MCT Web includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+/*global define,Promise*/
+
+define(
+    ['./SinewaveConstants', 'moment'],
+    function (SinewaveConstants, moment) {
+        "use strict";
+
+        var START_TIME = SinewaveConstants.START_TIME,
+            NUMBER_REGEX = /^\d+$/,
+            SECOND = 1000,
+            MINUTE = SECOND * 60,
+            HOUR = MINUTE * 60;
+
+        function SinewaveDeltaFormat() {
+        }
+
+        function twoDigit(v) {
+            return v >= 10 ? String(v) : ('0' + v);
+        }
+
+        SinewaveDeltaFormat.prototype.format = function (value) {
+            var delta = value - START_TIME,
+                seconds = Math.floor(delta / SECOND) % 60,
+                minutes = Math.floor(delta / MINUTE) % 60,
+                hours = Math.floor(delta / HOUR);
+            return [ hours, minutes, seconds ].map(twoDigit).join(":");
+        };
+
+        SinewaveDeltaFormat.prototype.validate = function (text) {
+            var parts = text.split(":");
+            return parts.length === 3 && parts.every(function (part) {
+                return NUMBER_REGEX.test(part);
+            });
+        };
+
+        SinewaveDeltaFormat.prototype.parse = function (text) {
+            var parts = text.split(":");
+            return [ HOUR, MINUTE, SECOND ].map(function (sz, i) {
+                return parseInt(parts[i], 10) * sz;
+            }).reduce(function (a, b) {
+                return a + b;
+            }, 0);
+        };
+
+        return SinewaveDeltaFormat;
+    }
+);
diff --git a/example/generator/src/SinewaveTelemetrySeries.js b/example/generator/src/SinewaveTelemetrySeries.js
index 1e84034766..f4e3f45293 100644
--- a/example/generator/src/SinewaveTelemetrySeries.js
+++ b/example/generator/src/SinewaveTelemetrySeries.js
@@ -25,12 +25,12 @@
  * Module defining SinewaveTelemetry. Created by vwoeltje on 11/12/14.
  */
 define(
-    [],
-    function () {
+    ['./SinewaveConstants'],
+    function (SinewaveConstants) {
         "use strict";
 
         var ONE_DAY = 60 * 60 * 24,
-            firstObservedTime = Math.floor(Date.now() / 1000) - ONE_DAY;
+            firstObservedTime = SinewaveConstants.START_TIME;
 
         /**
          *
@@ -58,6 +58,9 @@ define(
             };
 
             generatorData.getDomainValue = function (i, domain) {
+                // delta uses the same numeric values as the default domain,
+                // so it's not checked for here, just formatted for display
+                // differently.
                 return (i + offset) * 1000 + firstTime * 1000 -
                     (domain === 'yesterday' ? ONE_DAY : 0);
             };