It was about 3 weeks for me but I don't think everyone should try it that early. I was able to bend the knee of the opposite leg, keep the THR leg extended to the back and pick things up. This way I did not violate the 90 degree rule with my hip- just bending with my waist. I had had to do this prior to the surgery for a long time cuz it was uncomfortable for me to bend that joint so I was used to it.
Bending at the waist is not the same as bending between the leg and hip joint as someone so graciously pointed out to me when I was having anxiety before the surgery. I have always been very flexible and was able to violate the 90 degree rule bending forward without discomfort of any sort by 8 to 10 weeks although I don't force it. It is just comfortable to me but still not so comfortable as to reach the THR foot easily and am now about 13 weeks.
Hope this helps,