My countdown is quite extended, but it sure is pleasant to have selected an expected date - albeit 2 years in the future.
I intend to retire 2 yrs from the end of this year - some time in December 27. No real particular reason to pick that date. Just sorta seemed like a good one. I could retire today if I wanted, but each year I keep working is that much more that I’ll pile into retirement funds, and the funds will continue to grow instead of pulling money out. Plus it increases my eventual pension.
I’ve got a buddy who is a teacher. They are encouraged to name their retirement date 4 years in advance, so he’s been counting down the years - freshman…sophomore…. He is currently a senior. So I am near the end of my sophomore year. But I have to give my work calendars 6 months out, so I’ve already been planning my junior year.
In December 27 I will just have had my 67th birthday. And I’ll have 41 years with my employer (but that will be increased a few months to reflect unused leave.) I’ll start collecting my pension right away, but don’t intend to collect SS until 70. Between my pension, our SS, and what we draw from retirement accounts/investments, we should easily have similar income to what we currently receive. In fact, if the market doesn’t tank, we may need to figure what to do w/ RMDs. One reason I’m working a couple of more years is to allay my wife’s uncertainties. She gave up her fulltime career when we had kids, so the bulk of her retiremet funds will come from my earnings. If I die before her, she’ll only get 1/2 of my pension. She would still be fine IMO, but with some more in the retirement funds, she’ll be finer.
I get zero satisfaction from any aspect of my work. It is unpleasant, but not unbearable. And it pays well and allows considerable flexibility. I only have to clock in for 80 hours every 2 weeks, from 530 am to 1030 pm, with the majority from home. I set my own schedule (albeit 6 months in advance) so I can take whatever vacations and play as much golf as I want. So I’ve added in an additional weekly round of golf to start working up to retirement! 
I don’t anticipate any difficulty with boredom in retirement. I figure on playing more golf and music than I currently do, and filling the days with reading and puttering around the yard. We’ve been doing some more travel the last couple years to see if that is something we want to do more of, but we are not convinced that we do. At least not on a major scale.
I’d prefer ZERO acknowledgement at work of my leaving. It would be perfect if, several months after I left, someone said, “Has anyone seen or heard from Dinsdale lately?”