Loading

×Sorry to interrupt
CSS Error

Refresh

Cookie Preference Center

General Information on cookies

When you visit our website, we use cookies to ensure that we give you the best experience. This information does not usually directly identify you, but it can give you a more personalized web experience. Because we respect your right to privacy, you can choose not to allow some types of cookies by clicking on the different category headings to find out more and change your settings. However, blocking some types of cookies may impact your experience on the site and the services we are able to offer. Further information can be found in our

Cookie Policy.

Strictly Necessary

Strictly Necessary

Always Active

Strictly Necessary

Strictly necessary cookies are always enabled since they are essential for our website to function. They enable core functionality such as security, network management, and website accessibility. You can set your browser to block or alert you about these cookies, but this may affect how the website functions. For more information please visit www.aboutcookies.org or www.allaboutcookies.org.

Cookie Details‎

Performance

Performance

Performance

Performance cookies are used to analyze the user experience to improve our website by collecting and reporting information on how you use it. They allow us to know which pages are the most and least popular, see how visitors move around the site, optimize our website and make it easier to navigate.

Cookie Details‎

Please confirm your settings by refreshing the page.

Functional

Functional

Functional

Functional cookies help us keep track of your past browsing choices so we can improve usability and customize your experience. These cookies enable the website to remember your preferred settings, language preferences, location and other customizable elements such as font or text size. If you do not allow these cookies, then some or all of these services may not function properly.

Cookie Details‎

Advertising

Advertising

Advertising

Advertising cookies are used to send you relevant advertising and promotional information. They may be set through our site by third parties to build a profile of your interests and show you relevant advertisements on other sites. These cookies do not directly store personal information, but their function is based on uniquely identifying your browser and internet device.

Cookie Details‎

Advertising Cookies

Consent Leg.Interest

Select All Vendors

Select All Vendors

Select All Hosts

Select All

Clear Filters

Information storage and access

Apply

Confirm My Choices Reject All Allow All

My Subscriptions

Loading

Knowledge Base

Scheduled Tasks are incorrect after Daylight Saving Time (1034554)

Last Updated: 2/12/2020Categories: TroubleshootingTotal Views: 28617Language:
English

1 like this article

Subscribe to get an email
newsletter with new updates

1 people found this helpful Please provide article feedback:

Symptoms

After a Daylight Saving Time (DST) change, you experience these symptoms:

Scheduled Tasks display an incorrect next run time

Scheduled Tasks times run one hour early or one hour late, depending on the direction of the DST change

Cause

The issue is caused by vCenter Server storing and processing scheduled task times in UTC. vCenter Server uses UTC to preserve a reference time for clients and hosts that are running on different time zones. UTC does not have daylight savings advancements, so after the DST change, scheduled tasks run one hour earlier or later.

Resolution

To resolve this issue for vCenter Server 4.x and 5.x, run ScheduledTaskTimes.exe provided in the 1034554_DotNetApp.zip file attached to this article after the DST change. This application changes scheduled task times by one hour forward or backward.

Notes:

Run this application from the VMware vCenter Server.

ScheduledTaskTimes.exe is tested with vCenter 4.0 and vCenter 4.1, with remote and local vCenter connections, on a Windows XP Professional SP2 guest operating system and a MS SQL 2005 vCenter Server database.

Ensure that .Net Framework 2.0 is installed on the machine from which ScheduledTaskTimes.exe is run.

Caution:

Be cautious with tasks scheduled to run within one hour of the DST change. One hour may be repeated (1:00am to 2:00am in the United States) or skipped (2:00am - 3:00am in the United States), so tasks scheduled to run at these times may run twice or not at all.

Be cautious with monthly tasks scheduled to run on a specific week day (for example, the third Monday of each month). These tasks may fall on different days of the week on Local time and UTC, so they may trigger one week earlier or later. Check the next run time for these tasks.

To execute ScheduledTaskTimes.exe, run this command:

ScheduledTaskTimes.exe --url https://<vc-server>/sdk --username <user> --password <pass> --ignorecert --hour <inc|dec>

In 2011, DST changes occur in the United States on March 13 and November 6.

To fix the Scheduled Task times for the March 13 DST, run the command:

ScheduledTaskTimes.exe --url https://10.24.115.108/sdk --username administrator --password password --ignorecert --hour dec

To fix Scheduled Task times for the November 6 DST change, run the command:

ScheduledTaskTimes.exe --url https://10.24.115.108/sdk --username administrator --password password --ignorecert --hour inc

Related Information

Note: The source code for ScheduledTaskTimes.exe is included for reference in the src folder in 1034554_DotNetApp.zip. The code is based on VMware vSphere Web Services SDK samples and it is written in C#.

To be alerted when this document is updated, click the Subscribe to Article link in the Actions box.

Detectable by VMware SkylineTM

Actions

Copy

link to clipboard
copied!

Print

Language:
English

Attachments

1034554_DotNetApp.zip

Additional Resources

KB
•
End Of General Availability of the Free vSphere Hypervisor (ESXi 7.x and 8.x) (2107518)

Result 1 of 1

Ask The Community

Get answers quickly from VMware experts in the community

Post Subject

CONTINUE IN COMMUNITIES

Related Products:

VMware vCenter Server

Related Versions:

VMware vCenter Server 5.5.x

VMware vCenter Server 5.1.x

VMware vCenter Server 5.0.x

VMware vCenter Server 4.1.x

VMware vCenter Server 4.0.x

Take Our Survey

Support Assistant