# The Almanac Told You When to Plant
> Michaelmas and Martinmas were labour market events. A shared calendar coordinated a market with no other coordinating mechanism, and everyone knew when to show up without being told.
Author: Kariaa Research
Published: 2026-08-02
Category: Insights
Reading time: 10 min read
Canonical URL: https://www.kariaa.com/reports/the-almanac-told-you-when-to-plant
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import {
Timeline,
CompareColumns,
FlowSteps,
RankedList,
Takeaways,
} from "@/lib/report-charts";
Before there were labour markets there were labour calendars. The year had known
divisions, and those divisions were when work began, when contracts ran out, and
when a person could change master. Michaelmas at the end of September and
Martinmas in November were not merely feast days. They were the dates on which
annual service ended and hiring happened, and a farm servant knew when they could
leave in the same way they knew when the sun would rise.
## The calendar did the coordinating
**A labour market needs some way for buyers and sellers to find each other at the
same time in the same place, and for most of history that mechanism was the
calendar rather than any institution.** Hiring fairs, held at the customary dates,
brought together everyone looking for a place and everyone looking for hands.
Servants stood in the marketplace, sometimes carrying an emblem of their trade,
and terms were agreed for the year ahead.
Nothing coordinated this beyond common knowledge. No one sent notices. No
authority scheduled it. The date was simply known, embedded in the ecclesiastical
year and reinforced by every almanac, and that shared knowledge was enough to
assemble an entire regional labour market in one place on one day.
The efficiency of this is easy to underrate. Search costs in a market where
neither side knows when or where to look are enormous, and they fall almost
entirely on the party with less information and less mobility. A fixed customary
date collapses that problem. Everyone appears at once, comparisons are possible
because the alternatives are physically present, and the terms agreed are
therefore closer to what the market would actually bear.
**The agricultural year supplied the underlying logic, and it was not
arbitrary.** Contracts ran from after the harvest, because that is when the
previous year's work concluded and the next year's obligations began. The
calendar was not imposed on the work. It was read off it.
## Industrialization replaced a shared clock with a private one
**The decisive change was not that people began working longer. It was that the
schedule stopped being common property.** A season is visible to everyone. A feast
day is known to everyone. A mill owner's clock is known to the mill owner.
The factory required synchronization that the agricultural calendar could not
supply. Machines ran continuously, processes had to be staffed simultaneously, and
the relevant unit became the hour rather than the task or the season. Time
discipline followed, and with it the entire apparatus of attendance: the whistle,
the gate, the timekeeper, the fine for lateness. What was being purchased shifted
from a job done to a period of presence.
This transfer is easy to miss because the working day remained visible. Everyone
could see when the mill opened and closed. But the authority over that schedule
had moved from a calendar nobody owned to a party with an interest in the answer,
and the only counterweight was collective pressure, which is why hours became one
of the central objects of labour conflict for the following century.
The eventual settlement rebuilt a shared calendar by other means. Statutory hours,
the weekend, and public holidays are a common schedule created deliberately
through legislation and bargaining, because the customary one had been dismantled
and its absence proved intolerable. That settlement is a nineteenth and twentieth
century artifact, not an ancient inheritance, and it should be understood as a
reconstruction rather than a continuation.
## A boundary defended by everyone costs nobody anything
**The decisive property of a customary schedule is that observing it required no
courage.** Nobody had to decline anything. A person who did not work on a feast
day was not making a statement, taking a risk, or signalling insufficient
commitment. They were doing what everyone did, and the fact that everyone did it
was the entire protection.
Compare that to an individually negotiated boundary. Declining to answer in the
evening, or to work through a holiday, is now a choice attributed to a person and
read as information about them. It invites comparison with colleagues who chose
differently. Whatever the formal policy says, the informal cost falls on whoever
sets the boundary, and it falls hardest on whoever is least secure.
This is why individual boundary-setting systematically fails while collective
boundary-setting works. The customary calendar and the statutory week both operate
by removing the decision from the individual. Once availability becomes a personal
choice, the person most willing to be available sets the reference point, and
everyone else is measured against it. The equilibrium moves toward more
availability regardless of what anyone actually wants, and no individual defecting
can stop it.
## The uncounted cost of losing the date
The dissolution of work's time structure is usually discussed as a wellbeing
problem, and it is one. It is also a market failure, and that framing gets less
attention despite being more tractable.
**A labour market without a shared calendar is a market where search is
continuous, uncoordinated, and expensive.** The hiring fair worked because
everyone appeared at once and alternatives were comparable because they were
simultaneously present. A market where every vacancy appears at a different
moment, and every candidate searches on their own schedule, produces worse matches
for a straightforward reason: nobody ever sees the full set of options at the same
time. Decisions are made against whatever happens to be visible that week.
Academic hiring cycles, graduate recruitment seasons, and the sporting transfer
window are all deliberate reconstructions of the hiring fair, and they exist in
precisely the settings where match quality matters enough to justify the
coordination. That they had to be invented is the evidence. When the customary
date disappeared, the markets that most needed it built replacements.
## Not a case for going back
The customary calendar coexisted with poverty, coercion, and very little freedom.
A farm servant hired at Michaelmas was bound for the year, often lived under the
master's roof, and had few options if the arrangement proved miserable. The
annual term that provided a costless exit also provided a costly entry. Nothing
here is an argument for restoring any of it.
The point is that the coordination it supplied was doing real work, and that when
it was dismantled the function was not deliberately replaced. It was replaced
accidentally and partially, first by the employer's clock and then by statute, and
the current direction is toward not replacing it at all.
**The relevant question is not whether to have flexibility. It is whether anything
other than individual willpower is holding the structure.** Every historical
arrangement that protected time did so collectively, through custom, through law,
or through bargaining. None of them relied on individuals declining things one at
a time, because that has never worked and there is no reason to expect it to start
now.
The almanac was not telling anyone what to do. It was telling everyone the same
thing at the same time, and that turns out to have been the valuable part.
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*This report was produced by **Kariaa Research**. All data, resources, and
analysis are proprietary. For questions, contact
[research@kariaa.com](mailto:research@kariaa.com).*