The escalators run downhill daily from 6 am to 10 am and uphill from 10 am to midnight.
The escalator ride is free.
Wikipedia https://zh.wikipedia.org/wiki/中環至半山自動扶手電梯系統
Official website http://www.td.gov.hk/en/transport_in_hong_kong/pedestrianisation/hillside_escalator/
地址 9 Cochrane Street, Central & Western District, Hong Kong SAR China
坐标 22°16'59.277" N 114°9'15.948" E