Graphs showing UVI forecasts specific sites in New Zealand and the South Pacific region. When the UVI is low (less than 3), no protection is required and short exposures to sunlight will be beneficial for vitamin D production. At all other times some protection to avoid sunburn is recommended. The "UV Alert Period" is defined as the period when the clear sky UVI forecast is greater than 3. When the UVI is 3, damage to fair skin can occur in less than 1 hour. When the UVI is 12, damage to fair skin can occur in less than 15 minutes. For darker Polynesian skin types the safe exposure periods can be doubled.