Data Usage Docs in Android 4.0 for Systems Integrators.

Change-Id: I65606843ebe5396037c43cf633a0b8c536bfaa1d
diff --git a/src/tech/datausage/usage-cycle-resets-dates.md b/src/tech/datausage/usage-cycle-resets-dates.md
new file mode 100644
index 0000000..9bddad6
--- /dev/null
+++ b/src/tech/datausage/usage-cycle-resets-dates.md
@@ -0,0 +1,22 @@
+<!--
+   Copyright 2012 The Android Open Source Project
+
+   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.
+-->
+
+Users can specify a day of month upon which their data usage
+resets. Internally, cycle boundaries are defined to end at midnight
+`(00:00) UTC` on the requested day. When a month is shorter than the
+requested day, the cycle resets on the first day of the subsequent
+month. For example, a cycle reset day of the 30th would cause a reset
+on January 30 at `00:00 UTC` and March 1 at `00:00 UTC`.