You do not have a "duty to your job". Employers love it when they can get their workers to think that way because it raises the threshold amount they can overw

You do not have a "duty to your job". Employers love it when they can get their workers to think that way because it raises the threshold amount they can overwork and over-stress you before you've had enough and quit. You have to protect your personal time and your mental and emotional health. (I have had to learn this lesson a couple of times in 40+ years as a software dev.)