Thursday 01 Jan New Year's Day
Thursday 19 Feb Chinese Lunar New Year's Day
Friday 20 Feb Second day of Chinese Lunar New Year
Saturday 21 Feb Third day of Chinese Lunar New Year
Friday 03 Apr Good Friday
Saturday 04 Apr Holy Saturday
Sunday 05 Apr Ching Ming Festival
Monday 06 Apr Ching Ming Festival observed
Tuesday 07 Apr The Day Following Easter Monday
Friday 01 May Labour Day
Monday 25 May Buddha's Birthday
Saturday 20 Jun Dragon Boat Festival
Wednesday 01 Jul Hong Kong Special Administrative Region Establishment Day
Monday 28 Sep Day after Mid-Autumn Festival
Thursday 01 Oct National Day of the People's Republic of China
Wednesday 21 Oct Chung Yeung Festival
Friday 25 Dec Christmas Day
Saturday 26 Dec Boxing Day
Source: https://www.timeanddate.com/holidays/hong-kong/2015#!hol=9