How to Change Nintendo Account Time Zone
Steps for updating the time zone setting for a Nintendo Account.
What to do
Go to the Nintendo Account website and sign in to your Nintendo Account.
When signed in, you can update your time zone settings, or, if you are the admin in a family group, you can update the settings for any supervised accounts in the family group.
Select User Information.
In the “Profile” section, select Change.
In the “Time zone” dropdown, select the desired time zone.
Select Save changes to confirm the change.
Select Family Group.
Select the supervised account with the time zone you wish to change.
Select User Information.
In the “Profile” section, select Change.
In the “Time zone” dropdown, select the desired time zone.
Select Save changes to confirm the change.