Vitamin D Sun TrackerIs there a sun
window today?
Noonthe only hours that can work in winter
Oct 2 – Mar 11vitamin D winter in New York
600 IUdaily reference, adults
Sun angle by city, date and hour · NIH reference value · estimates, not medical advice
Some winter days still have one
The app tells you which hours — and when your vitamin D winter starts and ends in your city.
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Sun windowToo low· a clear day in late October
Cover the rest
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Time outside
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App Store Rating
5.0
The app is on iPhone only for now.
Free to download, Premium optional. Estimates, not medical advice. Privacy Policy