General rule for deductible health-insurance premiums. In the medical expense pot, you can include premiums for health policies that cover doctors and hospitals (so-called major medical coverage), dental care, vision care, and specialized health policies that cover things like accidents and cancer.
For me I would say good evening at around 7pm, but some people use 'Evening' to define after 5pm. Wikipedia quotes. 'Evening is the period of time near the end of the day, usually from 5.00pm to nighttime.
If you take 24 and divide it by 3, which is Morning, Afternoon and Evening, you would get 8 hours. So each time of day lasts exactly 8 hours. So basically you could say Good morning at 4:05 AM, Good Evening at 8:05 PM and Good Afternoon at 7:59 PM. Taking into consideration that we all know that morning and afternoon are both separated at exactly 12:00 PM and that the whole day has 24 hours (almost 24 but the difference is already accumulated every 4 years on february).