Haw. Code R. § 12-240-7
The minimum acceptable time from notification that a car is answering a call until the doors of that car start to close shall be calculated from the following equation:
where T = total time in seconds and D = distance (in feet or millimeters) from a point in the lobby or corridor sixty (60) inches or 1525 millimeters directly in front of the farthest call button controlling that car to the centerline of its hoistway door as shown in Figure 240-2, titled "Graph of Timing Equation", dated December 6, 1990, which is made a part of this chapter, and located at the end of this chapter. For cars with in-car lanterns, T begins when the lantern is visible from the vicinity of hall call buttons and an audible signal is sounded. The minimum acceptable notification time shall be five (5) seconds.
Haw. Code R. § 12-240-7