My take: you've got 24-36 months

This is not our friends at ZeroHedge ... this is The Economist;

... the global economy still faces all manner of hazards, from the Greek debt saga to China’s shaky markets. Few economies have ever gone as long as a decade without tipping into recession—America’s started growing in 2009. Sod’s law decrees that, sooner or later, policymakers will face another downturn. The danger is that, having used up their arsenal, governments and central banks will not have the ammunition to fight the next recession. Paradoxically, reducing that risk requires a willingness to keep policy looser for longer today.
...
Europe is deep in debt and dependent on exports. Japan cannot get inflation to take hold. Wage growth could quickly dent corporate earnings and valuations in America. Emerging economies, which accounted for the bulk of growth in the post-crisis years, have seen better days. The economies of both Brazil and Russia are expected to shrink this year. Poor trade data suggest that Chinese growth may be slowing faster than the government wishes.

If any of these worries causes a downturn the world will be in a rotten position to do much about it. Rarely have so many large economies been so ill-equipped to manage a recession, whatever its provenance, as our “wriggle-room” ranking makes clear (see article). Rich countries’ average debt-to-GDP ratio has risen by about 50% since 2007. In Britain and Spain debt has more than doubled. Nobody knows where the ceiling is, but governments that want to splurge will have to win over jumpy electorates as well as nervous creditors. Countries with only tenuous access to bond markets, as in the euro zone’s periphery, may be unable to launch a big fiscal stimulus.

Monetary policy is yet more cramped. The last time the Federal Reserve raised interest rates was in 2006. The Bank of England’s base rate sits at 0.5%. Records dating back to the 17th century show that, before 2009, it had never fallen below 2%; and futures prices suggest that in early 2018 it will still be only around 1.5%. That is healthy compared with the euro area and Japan, where rates in 2018 are expected to remain stuck near zero. When central banks face their next recession, in other words, they risk having almost no room to boost their economies by cutting interest rates. That would make the next downturn even harder to escape.

Good news; the USA is in better shape than many.

The next President will be the one who has to deal with this problem too (be careful what you ask for). The timing in interesting in another way; we've talked about the Terrible 20s often and the stress that will have on the DOD budget in general, and the USN shipbuilding budget in particular. This is going to make it even more of a challenge.

Plan on it. My advice; watch the real estate market for your I&W. As ususal, that will be your first indicator. If you asked me last year, I would have said 2018. Today, I am moving my chip towards 4QCY17 if no nasty black swans show up.

Plan accordingly.