Observed on May 12, the birthday of Florence Nightingale (1820). Internationally recognized since 1974 at the ICN's initiative. In China, hospitals hold 授帽仪式 (capping ceremonies) for new graduates on this day.
usage
护士 is pronounced hù-shi in everyday speech (with a neutral tone on 士), though it appears as hùshì in dictionaries. Both are acceptable.