Mine was a torn medial meniscus and I had a lateral release at the same time, so I don't know how long just the meniscus tear will take to heal. At the same time I was in, there was a high school kid in for a torn meniscus, and he was only in PT about 2 weeks. I don't know if he was done, or just quit coming, but when I saw him he seemed to be progressing quickly.
A week off work, and 1 month of PT isn't too bad. I know with both my knee surgeries, I was walking right after, on Dr's orders. NO crutches. If I needed to get somewhere, I walked (or gimped, as it were). Both my surgeries were on Thurs and I was back to work the following Mon, but I have a desk job. By your name I'm going to assume you're a nurse and are probably on your feet all day, so the week off.
Best of luck, and speedy healing vibes comin' your way!!
Nan