How long does it take to get results from a drug test?

Thailand
@pimagro24 (1047)
October 29, 2008 1:06am CST
I took a urine test for the company I work for (I've been there 7 months). We are switching companies, which is why we had to take the test. I took the test a month ago. If I would have tested positive for THC I would have heard something from the company already, right? How long do lab results usually take?