How do I change the Time zone on Azure DevOps Organization?

The time zone at the Azure DevOps organization level is used across Azure Boards Iteration dates, build pipelines time zones, and schedule of your releases and pipelines. Any change to Time zone will affect all its dependencies across your Azure DevOps organization for all the projects and project members. 

If you want to change the Time zone for your Azure DevOps organization, follow the below steps. 

1. Login to your azure DevOps organization at https://dev.azure.com/{yourorganizationname}
2. Open Organization Settings from bottom left corner > Overview > Time zone > Save. 

Please refer to below screenshots.

Fig 1 - How to open Azure DevOps Organization Settings

Fig 2 - How to change Time zone in Azure DevOps