| 1 | Monday, 1 January 1990 |
The first day of January |
| 2 | Saturday, 27 January 1990 |
Lunar New Year's Day |
| 3 | Monday, 29 January 1990 |
The third day of Lunar New Year |
| 4 | Tuesday, 30 January 1990 |
The fourth day of Lunar New Year |
| 5 | Thursday, 5 April 1990 |
Ching Ming Festival |
| 6 | Friday, 13 April 1990 |
Good Friday |
| 7 | Saturday, 14 April 1990 |
The day following Good Friday |
| 8 | Monday, 16 April 1990 |
Easter Monday |
| 9 | Tuesday, 1 May 1990 |
Labour Day |
| 10 | Wednesday, 2 May 1990 |
The Birthday of the Buddha |
| 11 | Monday, 28 May 1990 |
Tuen Ng Festival |
| 12 | Monday, 2 July 1990 |
The day following Hong Kong Special Administrative Region Establishment Day |
| 13 | Monday, 1 October 1990 |
National Day |
| 14 | Thursday, 4 October 1990 |
The day following the Chinese Mid-Autumn Festival |
| 15 | Friday, 26 October 1990 |
Chung Yeung Festival |
| 16 | Tuesday, 25 December 1990 |
Christmas Day |
| 17 | Wednesday, 26 December 1990 |
The first weekday after Christmas Day |