I visited

I visited my grandmother over the weekend. On Saturday, I arrived at her house or 10:35:02. I left on Sunday at 12:45:00. How long was my visit to my grandmother?

Correct answer:

t =  9803 s

Step-by-step explanation:

$$\begin{gathered} t_1=10\cdot 3600+35+60+2=36097 \\ {t}_2=12\cdot 3600+45\cdot 60+0=45900 \\ t=t_2-t_1=45900-36097=9803\text{s} \end{gathered}$$

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