I use to work a 12hr graveyard shift job .
I was the perfect shift for me

Yes I used to work 9 hrs once in a while 10 as thats when I was in y 20's 40's and never bother me working at a GM factory as retried on 08 age 56 and live a good life but now work 3 days a week at lowes sometimes 4 just to give me something to do as helps get me out of house as not good for me being alone in a quiet house since lost wife fro cancer so if worrking late was find for me

I use to work a 12hr graveyard shift ( 3rd shift ) . The shift worked well with my insomnia.

When I worked for the government, late in the year (September, October) we worked 12-hr days for a while.

The longest I was doing was 11 with a 1hr break. The job I had we could only do a max of 10 hrs or 11 with a 1hr break.