I think it's 117 days for me now. I was a heavy smoker.
If you're new to this part of the Forum, here's three tips on how I did quit.
1. Read Alan Carr's book The Easy Way To Give Up Smoking. I'd had it for ages but I actually properly read it and made notes and talked to a non smoker regularly about it when I was reading it.
2. Used patches. That meant I didn't worry about going out on smoking breaks with co-workers which seemed like a massive deprivation. I don't miss it all now.
3. Went to see my doctor and nurse and they gave me lung tests and that really made me focus on this stuff.
I've relapsed on the fags only once since August. I hated the smell on my clothes the next day.
Since I've stopped I've stopped coughing and I've saved a lot of money.
You can do this too especially if you post here looking for support and encouragement.