Indiana Code Title 28. Financial Institutions § 28-13-10-9

Sec. 9. (a) As used in this section, “emergency” means:

(b) A corporation may be closed on any part of a legal holiday by giving reasonable notice to its customers of its intention to be closed in observance of the holiday.

(c) Whenever a corporation is to be closed on a day or part of a day other than a legal holiday, the board of directors shall pass a resolution concerning the closing, and give reasonable notice of the closing to the customers of the corporation.

(d) The board of directors of a corporation may establish and observe different banking hours and designate different fixed days, if any, for closing the principal office and each separate branch office of the corporation.

(e) Any day designated by the President of the United States or by the governor as a day of mourning, celebration, or other special observance is a legal holiday for corporations.

(f) Whenever the officers of a corporation believe that an emergency exists or is impending, which affects or may affect one (1) or more of a corporation's offices, the officers have the authority, in the reasonable and proper exercise of their discretion, to determine not to open any one (1) or more of such offices or, if having opened, to close any one (1) or more of such offices during the continuation of the emergency.  The office or offices so closed shall remain closed until the time the officers determine that the emergency has ended.  However, such office or offices may not remain closed for more than forty-eight (48) consecutive hours on business days, excluding other legal holidays, without providing prior notice to the director of the department of financial institutions.

(g) A corporation closing an office or offices under subsection (f) shall give prompt notice of its action to the director of the department of financial institutions.

(h) Any date on which a corporation is closed under this section is a legal holiday with respect to the business affairs of the corporation.  No liability or loss of rights of any kind, on the part of any corporation, director, officer, or employee, accrues or results by virtue of any closing authorized by this section.