Approximately how long would you have to stay out of the sun to get low vit d level?

Few month(6)?: Approximately 5–30 minutes of sun exposure between 10 am and 3 pm at least twice a week to the face, arms, legs, or back without sunscreen usually lead to sufficient vitamin d synthesis and that the moderate use of commercial tanning beds that emit 2%–6% uvb radiation is also effective individuals with limited sun exposure need to include good sources of vitamin d in their diet