Haw. Rev. Stat. § 412:3-504: Notice and deadline for opening or relocating principal office, branch, or agency.

Every financial institution permitted under this part to open or relocate a principal office, branch, or agency shall notify the commissioner in writing that the opening or relocation has been completed, no later than five days after the opening or relocation. If the opening or relocation will not be completed within nine months after the opening date stated in the application, the financial institution may obtain from the commissioner an extension of the time to open or relocate, which shall be reasonably granted for good cause. If an extension of time to open or relocate is not obtained in writing, the commissioner may revoke the permission to open or relocate.