How Late Is To Late, To Mow Your Yard? [POLL]

I try to mow our lawn every Thursday night becasue our garbage gets picked up every Friday morning. And some nights I don't get around to mowing the grass until 9:00 so by the time I am done it is close to 10:00 or after 10:00. A lot of people in my neighborhood go to bed early and I think I may be interuptting their sleep every Thursday night when I mow my lawn. So how late, is to late?