I'm a 32-year-old female with medium fair skin, and I've been wondering about sunlight exposure since I've been spending much more time indoors because of the pandemic. If I'm planning to take a walk outside to get some sunlight, when is the best time of day to do this, and when should I avoid it? Also, how much time should I spend in the sun each week or day, while wearing regular clothes, to make sure I'm getting enough Vitamin D?