The Union Jack will fly at half-mast over the British Consulate from tomorrow to midnight on Monday in memory of Princess Diana. A spokesman for the consulate said the request had come from Princess Diana's family in an approach to the British royal family. Buckingham Palace had advised British posts around the world to lower their flags, the spokesman said. The consulate in Hong Kong had no plans to hold a memorial service or book-signing this year, a spokesman said. 'It's not a time of national mourning. We are just observing the anniversary by half-masting,' the spokesman said. It was also suggested that mourners could make donations to local charities as a mark of respect for Diana's charitable work. Princess Diana was killed one year ago in a car crash in Paris with her companion, Dodi Fayed.