 All right, so we're going to convert January 16 to 2016 at 9 hours 54 minutes and 31 seconds into a Julian day So the Julian day is 16 because we're in January. That's pretty easy And in order to convert the time we need to know how many seconds there are in each of these parts And then we're going to divide by the total number of seconds in a day So what we know is that there are 60 seconds in one minute There are 60 minutes in an hour And there are 24 hours in a day And that means if you multiply 60 by 60 by 24, then you can find out that there are 86,400 seconds in one day I feel like I'm singing that song from rent. Anyway, okay, so here's what we do We start with nine hours and we say all right nine hours is nine times 3600 which is the number of seconds in one hour is going to give us 32,400 seconds Then we need to convert the minutes 54 minutes multiply that by 60 because there are 60 seconds in a minute And we get three thousand two hundred and forty Seconds and then the 31 seconds we don't have to convert because that's already in seconds All right, and we're going to add up these numbers And we get this number 35,671 seconds We're going to divide that by 86,400 because that's the total number of seconds in a day All right, so divide by 86,400 And we get 0.4 One two nine Um, let's do a little reality check because I like to do that when I do math Um, is it possible that about nearly 10 in the morning we've gone through about 40 percent of a 24-hour day? Yeah, that makes sense to me because noon would be 50 percent, right? And we're not quite at noon yet So this looks good. Okay, so the so the answer here finally is that the actual day precisely Is 16.41 29 that's how you'd express the julian day with decimals of this date up here