Unified Communications Manager: Daylight Savings Time during Spring 2010

Document ID: 111853

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Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Changes for Time Zones and DST in CUCM 7.1(3) and Later
DST in United States
DST in Argentina
      Other DST issues
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Related Information

Introduction

This document refers to the issues related to 2010 Spring Daylight Savings Time (DST) for Cisco Unified Communications Manager (CUCM). The document in reference includes hyperlinks to Cisco Bug Toolkit, Cisco Software Center, or other appropriate resource for specific issues related to DST.

Prerequisites

Requirements

Cisco recommends that you have knowledge of these topics:

Cisco Unified Communications Manager

Components Used

The information in this document is based on the Cisco Unified Communications Manager 5.1(3) and higher.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Changes for Time Zones and DST in CUCM 7.1(3) and Later

DST updates are applied independent of CUCM software from version 7.1(3) onwards. So, you will not have to upgrade your CUCM to get DST updates. A separate DST update file will be provided if necessary. For detailed information, refer to the Changes for Time Zones and DST in CUCM 7.1(3) and Later section of the document Daylight Savings Time (DST) during Spring 2010 .

DST in United States

In the US, time springs forward on March 14, 2010, at 2:00 AM local time. There are no major changes to version requirements from the Fall 2009 DST event. If you have a DST issue, refer to the DST in United States section of the document Daylight Savings Time (DST) during Spring 2010 .

Cisco Unified Communications Manager (CallManager)