Your personal timezone setting controls most time-related settings in the New Relic UI, with a few exceptions, as explained in this document. If you change your timezone setting, this may take up to 24 hours to be reflected in the UI.
To change your default time zone for your New Relic account:
Users managed via automated user management can't change their time zone in the UI. That must be configured in your identity provider.
Some New Relic features do not rely on the User preferences time zone settings. The following use Coordinated Universal Time (UTC) and aren't affected by user preferences:
There may be other features where the time zone doesn't rely on your default time zone settings.