Reduce screen glare: Protective anti-glare screens can be applied to computers, phones, tablets, and eyeglasses, to prevent eye problems. Also, flat screens tend to have less glare than curved ones. The following is a list of definitions relating to conversions between seconds and minutes. What is a second (s or sec)? Fuls, J.L. (2008) Alternative hand contamination technique to compare the activities of antimicrobial and nonantimicrobial soaps under different test conditions. Applied and Environmental Microbiology, https://pubmed.ncbi.nlm.nih.gov/18441107-alternative-hand-contamination-technique-to-compare-the-activities-of-antimicrobial-and-nonantimicrobial-soaps-under-different-test-conditions/. The units involved in this conversion are seconds and minutes. This is how they are defined: Second Spending long periods looking at a screen can strain the eyes. Using the 20-20-20 rule can help to prevent this problem. For every 20 minutes a person looks at a screen, they should look at something 20 feet away for 20 seconds.

20 Second Timer – 123Timer

The 20-20-20 rule involves taking a 20-second break from looking at a screen every 20 minutes. During the break, a person focuses on an object that is at least 20 feet away, which relaxes the eye muscles. Adjust the screen’s contrast and brightness: Change settings so that the screen is just bright enough to read the text without straining. The right contrast may change depending on the presence of sunlight. We can also convert by utilizing the inverse value of the conversion factor. In this case 1 minute is equal to 3 × 20 seconds. In a small 2020 study, a group of patients at a university eye clinic were advised to follow 20-20-20 instructions. Twenty days later, self-reports showed no change in computer eye strain symptoms. But results of a clinical test, “tear break-up time,” indicated a significant reduction in dry eye. Judging a distance of 20 feet can be difficult. But looking at an object more than 20 feet away works just as well. When in doubt, aim for a longer distance rather than a shorter one.The conversion factor from seconds to minutes is 0.016666666666667, which means that 1 second is equal to 0.016666666666667 minutes:

20-Second Hand-Washing Rule Comes From These 2 Studies The 20-Second Hand-Washing Rule Comes From These 2 Studies

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty seconds is approximately zero point three three three minutes:

Calculation will be performed just after the operation selected. You can increase or descrease the hours, minutes and seconds value of time by your keyboard up and down keys. Now button will set the starting time to the current time. And the clear button resets the time inputs. Large Stopwatch - Use the Stopwatch in FULL SCREEN. Great for meetings, classrooms, conferences, schools, anywhere really... :-) It's one of the most common things to hear amidst the coronavirus pandemic — wash your hands with soap and water for 20 seconds. This is one of the Centers for Disease Control and Prevention's (CDC) main recommendations for killing germs. But the question remains: why should you wash your hands for 20 seconds, specifically? Look out a window during the 20-second breaks, if there is one nearby. It may be easier to find a distant object outdoors. A second is a unit of time. The symbol for second is s or sec. There are 60 seconds in a minute. What is a minute (min)?

Time Calculator

Next, let's look at an example showing the work and calculations that are involved in converting from seconds to minutes (s to min). Second to Minute Conversion Example Task: Convert 180 seconds to minutes (show work) Formula:

Washing your hands for at least 20 seconds is the most effective way to ensure your hands aren’t spreading pathogens," says family physician Dr. Natasha Bhuyan, MD. "This is in two ways: it helps both wash away dirt and grime and germs, but also helps kill pathogens." Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper. Make sure you're getting those soapy seconds in. It'll help keep you and the folks closest to you illness-free. An eye doctor may need to evaluate their vision and test the level of moisture in the eyes. When making recommendations, the doctor will take a person’s occupation and overall eye health into account.

20 Second Timer - Online Timer Countdown - Timer Stopwatch

Jensen, D. (2012) Efficacy of handwashing duration and drying methods. International Association for Food Protection, https://iafp.confex.com/iafp/2012/webprogram/Paper2281.html. Little scientific research has tested the effectiveness of the 20-20-20 rule, but both the American Optometric Association (AOA) and the American Academy of Ophthalmology (AAO) recommend it as a way to reduce eye strain. Alrasheed, S. H. et al. (2020). Impact of an educational intervention using the 20/20/20 rule on computer vision syndrome. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. We avoid using tertiary references. We link primary sources — including studies, scientific references, and statistics — within each article and also list them in the resources section at the bottom of our articles. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.

Reddy, S. C., et al. (2013). Computer vision syndrome: A study of knowledge and practices in university students. Nepalese Journal of Ophthalmology, 5(2), 161–168