A new study by Comscore of Americans’ social media network use in 2015 reveals that people over 35 spend an average of 22 hours a month on social media, and Millenials spend 36 hours a month, according to Quartz:

Monthly time on Facebook alone amounts to 15 hours (for 35+) and 17 hours (for 18-34), or an average of 16 hours a month between the two groups (which I know are not the same size, so that average is not statistically meaningful, but still). That’s a pretty substantial chunk of time, but if you spend 30 minutes a day on Facebook, that gets you to 900 minutes per month without breaking a sweat. Little pieces of time really add up.