Final answer:
Avoid sun exposure from 10 a.m. to 4 p.m. when UVB radiation is strongest; use sunscreen with SPF 30+ for protection.
Step-by-step explanation:
It is recommended to reduce sun exposure between 10 a.m. and 4 p.m. During this time, the sun's UVB radiation is at its strongest, which can lead to immediate skin damage and increase the long-term risk of skin cancer. Using sunscreen with an SPF (sun protection factor) of 30 or higher that protects against both UVB and UVA can help protect your skin if you need to be outdoors during these hours.