The rules for ending lockdowns were established by Italy, the first country in the West to impose one: Two whole incubation periods of 15 days have to pass after the last new positive case is detected.
Then there follows a 90-day heightened vigilance period in which many mass or social activities remain restricted.
So, at any single moment one is a minimum of a month away from release. Four from a return to some sort of pre-pandemic normality. Yet in reality, much further.
There were four new cases here in Guatemala today, one a man in his 70s from San Juan del Obispo.
France has seen a rise in fatalities, while Italy, which had appeared to be past the worst, has had a new surge.
In Europe only Spain appears to have peaked. But that just means the number of new cases detected each day has started a slow decline. They remain a long way from that final 30 days.
Even China still reports 20+ new cases a day.
And a strong sense that what is to come afterwards could well be worse has started to take hold.