Use the next convertion factors:
60 seconds are equal to 1 minute
60 minute are equal to 1 hour
24 hours are equal to 1 day in earth
[tex]9.98\times10^4s\cdot\frac{1\min}{60s}\cdot\frac{1h}{60\min}\cdot\frac{1\text{day}}{24h}\approx1.15\text{day}[/tex]