Not very long, a few months. We met on Columbus Day in early October, and were married the following July.
Got divorced about four and a half years later.
Met when I was 22, she was 17. Long distance for my last year of university, followed by her 4. We were basically living together weekends and the summer after 2 years, full time after 5…
We were engaged about 5.5 years after we met, married about 14 months later.
16 years so far!
Ran into each other in Feb, moved in together the next week. Engaged in Dec, married the following May. 23 years and counting. Using last century math. 
Lessee, I think we were dating about 4 months, married at 6 months, and 21 years going on 22 now?
2.5 years (but I was in another city for two of those)
Our story is similar. We moved in together a few weeks after our first date. Got engaged a few weeks later, and married a year after that. Next month will be 36 years together.
Met May 1st.
Dating within a couple of weeks.
Not sure when we actually got “engaged”, it wasn’t that formal. probably July.
Married August 1st.
It’s been 23 years and so far it’s working.
Engaged after six weeks, married fourteen months later, still together seventeen years later.
We had kids names picked out after two weeks of dating!
Didn’t mention but since others have. I think we are in year 23.
I also didn’t mention that when we met she was engaged to someone else.
And I was trying my damnedest to go slow. Didn’t want to do the rebound thing.