Public/General Holidays, 17 days

The first day of January 1 January 2019 Tuesday
Lunar New Year's Day 5 February 2019 Tuesday
The second day of Lunar New Year 6 February 2019 Wednesday
The third day of Lunar New Year 7 February 2019 Thursday
Ching Ming Festival 5 April 2019 Friday
Good Friday 19 April 2019 Friday
The day following Good Friday 20 April 2019 Saturday
Easter Monday 22 April 2019 Monday
Labour Day 1 May 2019 Wednesday
The day following the Birthday of the Buddha 13 May 2019 Monday
Tuen Ng Festival 7 June 2019 Friday
Hong Kong Special Administrative Region Establishment Day 1 July 2019 Monday
The day following the Chinese Mid-Autumn Festival 14 September 2019 Saturday
National Day 1 October 2019 Tuesday
Chung Yeung Festival 7 October 2019 Monday
Christmas Day 25 December 2019 Wednesday
The first weekday after Christmas Day 26 December 2019 Thursday


Statutory Holidays, 12 days

The first day of January 1 January 2019 Tuesday
Lunar New Year's Day 5 February 2019 Tuesday
The second day of Lunar New Year 6 February 2019 Wednesday
The third day of Lunar New Year 7 February 2019 Thursday
Ching Ming Festival 5 April 2019 Friday
Labour Day 1 May 2019 Wednesday
Tuen Ng Festival 7 June 2019 Friday
Hong Kong Special Administrative Region Establishment Day 1 July 2019 Monday
The day following the Chinese Mid-Autumn Festival 14 September 2019 Saturday
National Day 1 October 2019 Tuesday
Chung Yeung Festival 7 October 2019 Monday
Christmas Day 25 December 2019 Wednesday


Reference:

Announcements from GovHK:
http://www.gov.hk/en/about/abouthk/holiday/