According to a HK Government website(
http://www.info.gov.hk/info/holiday_e.htm) the following are general public holidays.
Ching Ming Festival 5 Apr Thursday,
Good Friday 6 Apr Friday,
The day following Good Friday 7 Apr Saturday
Easter Monday 9 Apr Monday.
According to Labour Department, all employees (including Foreign Domestic Helpers) are entitled to the above statutory holidays. Any more are purely at the discretion of the employer. If the statutory holiday falls on a rest day, a holiday should be granted on the day following the rest day which is not a statutory holiday or an alternative holiday or a substituted holiday or a rest day.
http://www.labour.gov.hk/eng/public/wcp/FDHLeaflet_Eng.pdf
The 12 statutory holidays for 2007 are :
1. The first day of January (1 January)
2. The day preceding Lunar New Year's Day (17 February)
3. The second day of the Lunar New Year (19 February)
4. The third day of the Lunar New Year (20 February)
5. Ching Ming Festival (5 April)
6. Labour Day (1 May)
7. Tuen Ng Festival (19 June)
8. Hong Kong Special Administrative Region Establishment Day (1 July)
9. The day following the Chinese Mid-Autumn Festival (26 September)
10. National Day (1 October)
11. Chung Yeung Festival (19 October)
12. Chinese Winter Solstice Festival (22 December) or Christmas Day (25 December) (at the option of the employer)
http://www.labour.gov.hk/eng/news/latest_holidays2007.htm