What is the best time of the day to get Vitamin D from the sun?
- Dr. Karuturi Subrahmanyam

- Jul 12
- 2 min read
Updated: Jul 18

Vitamin D is often called the “sunshine vitamin” because our body produces it when our skin is exposed to sunlight. It is essential for strong bones, a healthy immune system, and overall well-being. But many people don’t know the right time to get sunlight to make enough Vitamin D safely and effectively.
So, what is the best time of the day to get Vitamin D from the sun?
Why Is Vitamin D Important?
Vitamin D helps the body absorb calcium and maintain healthy bones and teeth. It also supports your immune system, helps reduce inflammation, and may even improve your mood. A deficiency can lead to weak bones, fatigue, body aches, frequent infections, and low energy.
When Is the Best Time for Vitamin D from Sunlight?
The best time of day to get Vitamin D is between 10:00 AM and 3:00 PM.
During this period, the sun is at its highest point, and UVB rays – the type that helps your body make Vitamin D – are strongest. Exposure to sunlight during this time helps your skin produce more Vitamin D in less time.
How Much Sunlight Do You Need?
15 to 30 minutes a day of sunlight is usually enough for most people.
People with darker skin tones may need more exposure.
Exposing arms, legs, or back without sunscreen for a short time is helpful. After that, you can use sunscreen to protect your skin from damage.
Note: This timing may vary depending on your location, skin type, age, and the season.
Sunlight Tips for Safe Vitamin D
Try to get sunlight on bare skin (face, arms, or legs) without sunscreen for a short period, then apply sunscreen if staying out longer.
Avoid sun exposure during the peak heat if you are very sensitive to heat or have medical conditions.
Sitting near a sunny window does not help because glass blocks UVB rays.
Who Needs More Sunlight or Supplements?
Elderly individuals
People who stay indoors most of the time
Those with darker skin
Individuals living in areas with long winters or cloudy weather
These groups may benefit from Vitamin D supplements if sunlight exposure is limited. Always consult your doctor before starting supplements.
Summary
The ideal time to get Vitamin D is between 10:00 AM and 3:00 PM, when the sun’s UVB rays are most effective. Just 15–30 minutes of sunlight on bare skin a few times a week can help maintain healthy Vitamin D levels. With safe and regular sun exposure, you can boost your bone strength, immunity, and overall health – naturally.
Dr. Karuturi Subrahmanyam, MD, FRCP (London), FACP (USA)
Internal Medicine Specialist
Kify Hospital
Danavaipeta
Rajahmundry
Phone : 85000 23456




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