One second is approximately 0.0000115741 of a day

Yes, that's correct! There are 86,400 seconds in a day (24 hours × 60 minutes × 60 seconds). Therefore, if you take the reciprocal of that, you can find out how many days are in a second:

\[
\text{Days in a second} = \frac{1 \text{ second}}{86,400 \text{ seconds/day}} \approx 0.0000115741 \text{ days}
\]

So, one second is approximately \(0.0000115741\) of a day.