Time / Ideas / Culture

What we make of time

Who owns time? Who decides what time it is? What day? What year? What does it mean to dwell in the past or look to the future? To “do time”? To kill time?

A collage of posters advocating for daylight saving time during world war 1.
Saving Daylight from World War I

A Sideways Look

Jay Griffiths wrote “A Sideways Look at Time”, one of the best books about everything other than how to make a good clock. She beautifully covers time in culture(s) and the feeling of time. The book is challenging to read in order (I think by design, to challenge a too-rigid linear structure) but I’ve come back to it over the years and always find something new and valuable.

I liked what she said so much I extracted the text from the caption file of her interview in the film Keeper of Time.

Author Jay Griffiths interviewed for the documentary Keeper of Time.
Author Jay Griffiths interviewed for the documentary Keeper of Time.

“To me, a clock is not a synonym for time. If anything, it’s the opposite of time.  

“The whole history of clockwork and the obsessive nature of time measurement has led people to think that that is the only place that we can look for time. And to me, it’s a bit like looking at a landscape,  and instead of seeing the hills and the rivers and the valleys, of just saying, well, that’s three kilometers. That’s 15 acres. Measuring a landscape. You wouldn’t say that you had understood a landscape if you just told somebody its lengths and measurements and dimensions. And to me, time is like that, that it’s actually this full, other, and deeply, profoundly, natural thing.   

“The animals that you see, the seasonality of migrations, all of this contains time. Bees have their own internal clocks.  When bees are moved, they in effect experience jet lag. There’s time in the seas, the time of tides, the time of waves. But also there’s a human instinct to spend time by the sea, which is a different psychological experience… That sense that the sea is creating these endless hours.  There are centuries in trees. There’s a kind of, there’s a past, there’s a future. There’s a present, in every bud, in every acorn. There’s time in every flower. Even the daisy. 

“It’s one of the most beautiful etymologies. The daisy, that humble little flower, is actually from the phrase, the day’s eye, because it opens its eyes in the morning and it closes them at night.  

“Having a standardized clock and calendar, obviously it’s very useful. But I think the artifice of clockwork creates its own kind of theater, its own demanding, coercive, and very stressful experience. People have alarms set to shock them out of sleep. And then the first question in so many people’s minds is, what’s the time? Am I late? How fast do I have to be? How much do I have to do? And this compression of time, and that coercive sense of being trapped by the clock, and not feeling your own pace through your own day, is extremely stressful for people. High blood pressure, ulcers, heart disease, all of these things are known to have come from it.  

“I think our most natural guardians of the sense of the depth of time is actually children.  Children live absolutely (indistinct)  [JF note: “kairologically”, from kairos vs chromosome, as in counter to “chronologically”].  They’re in their own time. They hate punctuality.  They have to be taught the clock like it is their enemy.  And for a lot of children, it is.  Adults strain to live mindfully in the present moment.  Children’s grandeur of time, their depth of presence in the moment is something that we, I think, should all learn from.  The imagination works much better when it’s not being told what to do with itself at what point, where there’s just roaming room, and there’s a kind of mental sovereignty.  They own their own time. They own their own minds.  And they put those two together and who knows what mayhem may come out of it, but creative mayhem.”

Logical Calendars

I am a Tuesday.

The International Fixed Calendar was a proposal to “rationalize” the Gregorian calendar proposed by Moses B. Cotsworth in 1902. In Cotsworth’s calendar, every month would have 4 weeks (28 days); the year would have 13 months, adding a new month, Sol in the middle. A new holiday, “Year Day”, would be added after December 28th, with no day of the week (likewise, a Leap Year would include the 29th of Sol and have no associated day). 

One consequence of such a calendar is that every date always falls on the same day of the week every year. My birthday, July 11, is Sol 24 in the IFC, and that date is, and always will be, a Tuesday. Riffing with LowRes Time student Anney Norton in 2023, we hit on the fun idea that having your birthday on the same day of the week every year would affect your personality. Imagine the difference between a Tuesday (such as myself) and a Friday or Saturday. Every year their birthday aligns with the weekend; while mine falls in the dreary weekday. How would that shape our lives? How outgoing and fun-loving they must become; and how dull for me. 

(Also – as there are non-named holiday days like Year Day, it’s possible that your birthday falls on one of those…)

With that in mind, I adapted some code I found to convert your birthday to it’s IFC equivalent. What day of the week are you? 

(BTW – my two kids and spouse loved this, as they determined that they are Thursdays, Fridays, and Saturdays, and immediately began lording it over me.)

Calendars and Computus

How else to divide a year? There are many, many calendars in the world, most of them less rigidly rational than the IFC but responding to some specific challenge or puzzle. The two obvious sky objects – the sun and the moon – do not neatly divide the year into equal segments, or align with each other. Various traditions emphasize the primacy of the sun (solar calendar) or the moon (lunar calendar).

There are 365.2422 days in a year (hence leap years…) and 29.53 days between two new moons (a lunar month). There are 12.37 lunar months in a solar year, which means that 19 solar years is almost exactly 235 lunar months. This 19 year correlation – the Metonic Cycle – was known to the makers of the Antikythera mechanism and reflected in it’s calendar.

The Islamic Hijri calendar is purely lunar, a reform directly from Muhammad that removed the politically fraught calculation of leap months.

The number of months with Allah has been twelve months by Allah’s ordinance since the day He created the heavens and the earth. Of these four are known as forbidden [to fight in]; That is the straight usage… Verily the transposing (of a prohibited month) is an addition to Unbelief: The Unbelievers are led to wrong thereby: for they make it lawful one year, and forbidden another year, of months forbidden by Allah and make such forbidden ones lawful. The evil of their course seems pleasing to them. But Allah guideth not those who reject Faith.

at-Tawba 9, 36-37

12 lunar months is about 354 days, so annual holidays will “travel” or “walk” through the seasons, occurring about 11 days earlier each solar year. In approximately 33 years, a given holiday will return to the same season. Ramadan, which proscribes fasting from dawn to dusk, will feel viscerally different in a short New York winter day of 9 hours compared to a long summer day of 16, and those differences will themselves change with the latitudes. A person in her 30s will begin to experience the holiday seasons of her childhood, and again in their late 60s – marking distinct phases of a human life.

Some calendars try to reconcile the sun and the moon (a lunisolar calendar). Jewish holidays fall in the same season, but may be “early” or “late” because of the addition of occasional 13th months to the calendar which keep the solar and lunar cycles aligned. The Chinese Lunar New Year is similarly adjusted. The exact algorithm is different, but the result is the same: both calendars follow a 19-year Metonic pattern.

The Gregorian calendar (which could be a whole chapter of it’s own) is solar, and the basis for much of the civil calendar around the world (May Day), US holidays (4th of July), and many Western Christian holy days (Christmas).

Many but not all. Some very important holidays are “moveable feasts” – dates that, like Passover, are adjusted to coincide with both solar and lunar cycles. Easter is a moveable feast, somewhat like Jewish or Chinese dates that move in accordance to both the moon and sun, and additionally, must fall on a Sunday.

https://www.timeanddate.com/calendar/determining-easter-date.html

A “computus” clock or watch calculates the date of Easter. This is hard!

https://www.hodinkee.com/articles/patek-philippe-caliber-89-easter-problem

https://www.hodinkee.com/articles/watchmakings-unsolved-problem-with-the-date-of-easter

Diagram, date of Easter mechanism, Patek caliber 89
Date-of-Easter mechanism, Patek Philippe Caliber 89, from the original patent. via Hodinkee

Here’s a famous and amazing astronomical clock with a computus complication:

https://en.wikipedia.org/wiki/Strasbourg_astronomical_clock

The Russian Computus info (Eastern Orthodox follow a different calendar but have similar moveable feast calendars)

The maker is https://chaykin.ru/en/

Who also makes Minion-themed watches?? (12-month waiting list, >$40K – a sign of the end times?)

Parmigiana makes Gregorian, Hijri (pure lunar), and Chinese calendar watches (this is a huge flex on their part):

https://www.parmigiani.com/en/stories/cultural-calendars

More on Calendars

HS-NY has several volumes on calendars, as written up by Dr. Marraccini for Hodinkee.

A Path to Eternity

How do you make something that will last forever? One way is to create a lasting culture of care that perpetually rebuilds, like this continuously-rebuilt temple in Japan:

https://www.smithsonianmag.com/smart-news/this-japanese-shrine-has-been-torn-down-and-rebuilt-every-20-years-for-the-past-millennium-575558/

Rebuilding the shrine
From Japan for Sustainability

Time Zones

Time zones means a central authority declares your local noon is not actually noon. Can you imagine this passing today?

Early time zone proposal
Quirico Filopanti’s 1858 time zone proposal in Miranda!

The Future of Nostalgia

Svetlana Boym, in the “Future of Nostalgia”, identifies two types of nostalgia: restorative and reflective (and she notes “Two kinds of nostalgia are not absolute types, but rather tendencies”). Reflective nostalgia dwells in “algia, in longing and loss, the imperfect process of remembrance. A reflective nostalgist might wistfully visit a ruin. 

Restorative nostalgia “characterizes national and nationalist revivals all over the world, which engage in the anti-modern myth-making of history by means of a return to national symbols and myths and, occasionally, through swapping conspiracy theories” – the “nostos” (homecoming). A restorative nostalgist wants to rebuild or even invent monuments to an imagined, purer past. 

This is khaki-pants-and-tiki-torch nostalgia. (Tan Dockers paired with home-store tiki torches was the preferred uniform for the white nationalists protesting the removal of Confederate statues). Boym was writing two decades before January 6th, 2021, of historical examples “from pogroms to Nazi and Stalinist terror to McCarthy’s Red scare”, but her text reads like a how-to for Q-Anon and the modern right: 

‘To conspire means literally to breathe together—but usually this collective breath doesn’t smell very good. Conspiracy is used pejoratively, to designate a subversive kinship of others, an imagined community based on exclusion more than affection, a union of those who are not with us, but against us. Home is not made of individual memories but of collective projections and “rational delusions.” Paranoiac reconstruction of home is predicated on the fantasy of persecution. This is not simply “forgetting of reality” but a psychotic substitution of actual experiences with a dark conspiratorial vision: the creation of a delusionary homeland. Tradition in this way is to be restored with a nearly apocalyptic vengeance. The mechanism of this kind of conspiracy theory is based on the inversion of cause and effect and personal pronouns. “We” (the conspiracy theorists) for whatever reason feel insecure in the modern world and find a scapegoat for our misfortunes, somebody different from us whom we don’t like. We project our dislike on them and begin to believe that they dislike us and wish to persecute us. “They” conspire against “our” homecoming, hence “we” have to conspire against “them” in order to restore “our” imagined community. This way, conspiracy theory can come to substitute for the conspiracy itself. 

From the section “Restorative Nostalgia: Conspiracies and Return to Origins”. Boym, S. (2018). The Svetlana Boym Reader. Bloomsbury Academic & Professional. Available through NYU library. 

The Precession of the Autumn Noshes

Since it’s introduction in 2003, the Starbucks Pumpkin Spice Latte and accompanying Fall Seasonal Menu has appeared earlier and earlier. Launched in October 20 years ago, it now starts in late August. Future historians may have to contend with this and adjust dates accordingly.

A graph of Pumpkin spice Latte dates.
Dates collected and graphed by Gemini. It failed at providing a fall-themed rhyme for “equinoxes”

Weekdays

The names of the days of the week in different languages is a fun subject to explore. Many but not all weeks follow a seven-day pattern inherited from the Babylonians, and the echos of their system are found around the world. Along the way, gods from various cultures got partially substituted into the naming conventions, resulting in fascinating hybrids of planets, Roman gods, and Norse mythology. Other systems simply number the days, but disagree on where to start – the classic computer science 0/1 debate.

Further topics

  • Winter Counts
  • Cahokia, the Chako Canyon Star Map, and SN1054
  • Star map relics
  • Uraniborg, Jantar Mantar, and the Dadu Observatory
  • Stonehenge, Woodhenge
  • Unetanneh Tokef
  • Hindu units of time
  • Mnemosyne, Aion, and Moirai
  • Huginn and Muninn, Hygge
  • Temporal Hyperobjects
  • The Paris Meridian
  • Time Theft
  • Born sexy yesterday trope
  • Ahora, ahora mismo, ahorita

Culture Links

Over the years I’ve accumulated about a thousand time-related bookmarks. In 2026, I used Claude Cowork to scan the links, eliminate duplicates and dead ends, and place the remainder in organized categories following the six sections of the syllabus. These are from that process. While I found all these links originally, I haven’t reopened each link to see how Claude did… Spot checking so far seems like this is a valuable improvement, so I’m sharing on the syllabus.

General

Calendars & Almanacs

  • Kalachakra — A Tibetan Buddhist tantric tradition whose “Wheel of Time” teachings embed an entire cosmological calendar system, astrology, and prophecy of the mythical kingdom of Shambhala.
  • Dendera Zodiac — The story of an ancient Egyptian temple-ceiling star map so coveted that a dealer sawed it out of the wall in 1821 to ship it to Paris, where it still sits in the Louvre.
  • Seleucid Era — Traces the “Year of the Greeks” dating system launched in 312 BC that Yemenite Jewish communities kept using on legal contracts well into modern times.
  • The Gregorian Calendar — Walks through the leap-year formula, the 1582 papal reform, and why Britain’s 1752 switch made September 2 jump straight to September 14.
  • Dog Days of Summer and the Dog Star Sirius — Explains why the muggiest weeks of summer got named after a star, tracing “Dog Days” back to Sirius’s dawn rising in ancient Egyptian and Roman skywatching.
  • Indian Calendar for Indian Festivals and Holidays — A live, auto-updating almanac tool listing Hindu, Buddhist, Jain, Sikh, and Christian holiday dates across India for the current year.
  • Mars Clock and Calendar — A reprinted 1954 Sky and Telescope article on an actual mechanical clock built to run Martian and Earth time side by side, complete with a proposed 668-day Mars calendar and its own leap-year rule.
  • Jewish Calendar: Solar and Lunar — Lays out how the Hebrew calendar squares lunar months with the solar year using a 19-year cycle with seven leap months, and why Jewish days start at sundown.
  • Calendars and their History — A NASA-hosted reference reprinted from the Astronomical Almanac that works through the mechanics of the Gregorian, Hebrew, Islamic, Indian, and Chinese calendars plus Julian day numbering.
  • The Chinese Calendar — Breaks down the lunisolar math behind Chinese New Year, the 60-year stem-and-branch naming cycle, and why leap months (not leap days) keep it in step with the seasons.
  • Chinese Calendar Online — A daily-updating lunar calendar and Tong Shu almanac tool that flags auspicious and inauspicious activities, lucky directions, and zodiac data for any date you pick.
  • August 4, 2022 Almanac Calendar — A single day pulled from the Tong Shu almanac, breaking August 4, 2022 into hour-by-hour lucky and unlucky windows for activities like travel or construction.

Time Zone & Calendar Politics

  • The Day of Two Noons — Library of Congress guide on how, on a single day in 1883, every U.S. railroad clock was reset at once to launch the standard time zones we still use.
  • How The Soviet Union Tried to Abolish Weekends — The strange true story of Stalin-era “nepreryvka,” a color-coded five-day work calendar that scrapped Sundays and left friends and families with no shared day off.
  • Map: How Wrong Is Your Time Zone? — Slate breaks down a world map of how far local clocks drift from true solar noon, from Spain’s Franco-era time shift to Western China’s two-hour gap.
  • Noon Shift — Interactive map you click anywhere on to see exactly how many hours that spot’s clock time is offset from true solar time.
  • Solar Time vs. Standard Time Map — The full-size version of the color-coded chart (built by math blogger Stefano Maggiolo) behind Slate’s “wrong time zone” story, showing every region’s drift from solar time.

Indigenous Moon Calendars

Meng Po & Forgetting Mythology

Labor & Crunch Culture

  • The Extreme 996 Work Culture in China — A VICE Asia video following workers trapped in China’s grueling “9am-9pm, 6 days a week” tech-industry grind.
  • How Crunch Became Legal — Traces how decades-old overtime-exemption loopholes, from the 1938 Fair Labor Standards Act to 2000s California rules, let studios legally work game developers into “crunch” for free.
  • Rich Tax Breaks Bolster Video Game Makers — Investigates how a wildly profitable video-game industry has also collected millions in state and federal tax subsidies.

High-Frequency Trading & Time

Douglas Rushkoff

  • Escape Fantasies of the Tech Billionaires — Rushkoff recounts being flown in to advise five ultra-wealthy men on their private apocalypse-survival bunkers, and what it revealed about the billionaire “escape” mindset.
  • Present Shock — Publisher page for Rushkoff’s book arguing that 24-hour feeds and always-on connectivity have collapsed narrative into a disorienting, permanent “now.”
  • Turtles from the Shells — Rushkoff essay tracing humanity’s arc from present-tense hunter-gatherers to future-obsessed farmers and capitalists, and back again in the digital present.

Doomsday & Climate Clocks

  • A New York Clock That Told Time Now Tells the Time Remaining — Tells the story of Union Square’s giant digital “Metronome” display being reprogrammed to count down the years, days, and seconds left to act on climate change.
  • Climate Clock — The activist project’s official site, featuring a live countdown to the climate “deadline” alongside physical and digital clocks anyone can install to spread the same urgency.
  • Pandemic Time: A Distributed Doomsday Clock — A philosophical essay arguing COVID-19 shattered shared, global clock-time into millions of local, subjective countdowns shaped by each place’s own stage of outbreak.

Daily Routines & Rituals

  • Daily Routines — Mason Currey’s original blog compiling firsthand accounts of how famous writers, artists, and thinkers structured their workdays, the project that grew into his book “Daily Rituals.”
  • Daily Rituals: Life-Hacking Tips from Novelists, Painters, and Filmmakers — Currey introduces his Slate series mining 161 creative lives for the routines, superstitions, and compromises behind their work, from early risers to night owls.
  • Daily Rituals (Slate series index) — A full index of Currey’s 15-part Slate series, ranking everything from Balzac’s 50-cups-a-day coffee habit to Kafka’s naked calisthenics.

Chinese Time-Travel TV Ban