Legal analysis: the time for trademark change is generally six to eight months. Where a trademark registrant changes its name, address or other registered items, it shall file an application for change with the Trademark Office. After approval by the Trademark Office, the trademark registrant shall be issued with a corresponding certificate and announced; If it is not approved, it shall notify the applicant in writing and explain the reasons.

Legal basis: Article 41 of the Trademark Law of People's Republic of China (PRC). If a registered trademark needs to change the name, address or other registered items of the registrant, an application for change shall be filed.