#time-keeping

Measuring Time in the Ancient World

I love these sorts of daily-life details, so I may have got a little carried away…. Before I get into the weeds, however, I want to make everyone aware of a reference resource:

E. J. Bickerman, Chronology of the Ancient World. Thames & Hudson, 1968.

Yeah, it’s old now, but Bickerman spent most of his career on dating puzzles, and I don’t think there’s anything recent to match it. When I first was told about it years ago in my historiography class, I practically bounced off the walls. (My fellow grad students thought I’d lost my mind.)

I’m not sure of the best way to address this query—topically or geographically—but I’ll go with topically. I’ll also say upfront that I’m unfamiliar with Egypt, so they’re not much mentioned. Also, if you want more details on any particular system (Roman, Athenian, Babylonian, Jewish), there are plenty of online resources.

Long-count Calendar

How to number years across a span? Regnal years was most common in antiquity: year 1, year 2, year 3 of ___ king. Also, king lists detailed how long ___ ruled. The Ancient Near East (ANE) excelled at chronologies; we have some that go back to Sumer. That’s pre-Bronze Age. The span of some reigns can be deeply problematic (e.g., mythical), but we have the lists. Fun note, Neo-Assyrians named years by its major military campaign. Tells us a lot about them, no?

What about places without kings? Greece, Rome, Carthage?

The Greeks had several systems, internal and panhellenic. Internal systems often dated by the name of a prominent city magistrate. In Athens, that was the eponymous archon, in Sparta, the eponymous ephor, etc. The panhellenic system used Olympic years. In Dancing with the Lion, if you look at date plates before sections, that’s what I used. It’s a 4-year system, so, “In the year of the 97th Olympiad,” “In the first year of the 97th Olympiad,” “In the second year…,” and “In the third year…,” then we’re to “In the year of the 98th Olympiad…” In modern annotation it’s Ol. 97.1, Ol. 97.2, Ol. 97.3, Ol. 97.4. From (our year) 776 BCE down into the Roman Imperial era, the Olympics made useful anchor dating for the eastern Mediterranean (Magna Graecia).

Rome had its own system: two in fact. It counted years by both consuls, but also AUC = ab urba condita … “from the founding of the city.” Carthage used a similar system involving their two senior Judges for their senate.

When it came to “world histories,” authors such as Diodoros Siculus used several systems: Olympiad, Athenian archon, and Roman consuls. It gets a bit unwieldy, but is about as universal as we have for the Med until Christianity took over everything.

Yearly Calendars

Much of the ancient world used lunar (354-day), not solar (365-day) calendars. Yes, they knew a lunar year didn’t line up with the solar, and they used “intercalation” to fix it, avoiding summer festivals being celebrated in winter. Either a 13th month was needed every 3 years, or they added a few days to months here and there, making a “lunisolar” calendar. We have an intercalated day in our own calendar: Feb. 29th in Leap Year. To fix a calendar, however, an “anchor” is needed. This anchor is usually a solstice or equinox, which may (or may not) correspond to their New Year.

Our modern (Western) world places New Year’s in the dead of winter. But many pre-modern calendars put it in spring. Makes sense: life renews, it’s a new year. The Babylonian New Year was decided by the spring equinox—first new moon after—which pattern affected most of the ANE.

The Hebrew New Year (Rosh Hashana) is in autumn, but their first month (Nisan) is in spring. (They also have a New Year for Trees! Tú bish'vat. How cool is that?) Wanna know when your Jewish friends are having a holiday? Use Hebcal, the gold standard.

MANY ancient cultures have more than one calendar running at a time. So do we. Working in the uni, I have the “normal” year, but also the “academic” year to keep up with.

Despite the dominance of certain early systems such as Babylon's, counting the new year was always specific to a region and people, and their religious traditions. No single Greek new year tradition existed. Both Delos and Athens used the first new moon after the summer equinox: early July. The Macedonian calendar seems to as well, so Alexander was born in the first month of the year. Other city states were different. I’ve forgotten most but do remember Sparta’s is in autumn because their new year almost falls on my birthday.

Remember, although we today talk about “ancient Greece” as if it were a country—it wasn’t. There was a landmass called Hellas, but each city-state was independent, and had its own laws, gov’t, coinage, and religious cult. Too often “Greek” winds up being conflated with “Athenian,” because we happen to have the most evidence from ancient Athens. But both Athens and Sparta were weirdos. Corinth, Thebes, Argos, Mytilene, Cos, Eretria, Miletus…all were a lot more typically Greek in their gov’t systems, etc. There were also 3 (or 4) different branches (dialects) of the Greek language: Ionic-Attic, Doric, and Aeolic, plus a smattering of smaller groups. These dialects corresponded to different religious/festival systems.

That means every city-state had its own calendar, connected to its own festivals.

In fact, most city-states had several: sacred, civic, etc. Athens had a 12-month lunar calendar for festivals, but a 10-month civic calendar corresponding to the 10 tribes for Assembly business. Originally, they had only 4 tribes, not 10, so political changes meant calendar changes.

In each city-state, month names were derived from the major festival for that month. We have the complete month names for only a few: Athens is one and (fortunately for me) Macedon is another (specifically Ptolemaic, but it’s likely the same as the Argead). Below “Ancient Greek Month” REALLY means “Athenian month,” which annoys the hell out of those of us who don’t consider Athens the be-all and end-all of Greek history!

Because their months were lunar, they bisect our months, e.g., July/Aug = Athenian Hekatombian or Macedonian Loos [Alexander’s birthmonth], Jan/Feb = Athenian Gamelion or Macedonian Peritios [probably the month that gave Alexander’s favorite hound his name: Peritos]. Likewise, as the Athenian new year began in midsummer, dating ancient events also bisects. You’ll see 342/1 to designate the year from July of 342 BCE to June of 341.

As mentioned, most places used lunar months as the most basic time-keeping, but the moon isn’t the only way to make a “month.” Rome originally had 10 months of 30/31 days, adding 2 later, which is why our 12 months have Romanesque names.

Just remember: NO UNIVERSAL SYSTEM for months.

What About Weeks?

A seven-day week is borrowed from the Jews via Christianity. Both Jews and Egyptians had a dedicated day of rest. (For Egypt, the 10th day.) In most places, however, days off were festival related. Every month had festivals, which might last from half a day to several days in a row. You worked…took off for a festival…then you worked. No regular day of rest. (For the modern weekend? Thank unions and the Labor Movement!)

How did others subdivide a month? Athenian months were c. 30 days, divided into 10s: 1-10, 11-20, 10-1. Yup, the last is backwards. But dating also counted waxing and waning moons. So the new moon began a month, the 7th of the month would be the waxing moon, the 24th or the 6th waning moon. This is the Athenian system. Other city-states are less clear, but probably similar.

Romans had kalens (1st), nones (7th), and ides (15th). Nundinae (market days) means 9th, but were really the 8th day. The 7-day week is late Imperial and, again, owes to Christian take-over of Jewish weeks.

Most systems had “auspicious” and “inauspicious” days for religious activities, civic activities, and business activities. Don’t start anything on an inauspicious day! (These were manipulated, especially in Rome, but that’s a whole different discussion.) The closest modern equivalent I can think of is Mercury Retrograde. 😊 Although in modern Greece, signing a contract on a Tuesday morning is bad juju, or May 29th. Constantinople fell on a Tuesday morning May 29th, 1453. We might, in America, consider 9/11. Who wants to open a business on 9/11?

The Horai (The Hours)

When did the day begin? Again, the ANE and Med are different. In the ANE, day typically began at sunset. So yes, that’s why the Jewish shabbat starts at sunset on Friday and lasts till sunset on Saturday. (If you didn’t know, the Jewish “day of rest” isn’t Sunday, but Saturday.)

For Greece and Rome, et al., day began at dawn. Each day was then evenly divided between day and night, so there was no standard length of an hour. It depended on the time of year. Each half had twelve hours, subdivided into 4 groups of triads. Originally in Greece it seems there were only 9, not twelve, but they increased to match the lunar months. The division of 4 groups of triads also yielded the 4 seasons of 3 months each. Hora was initially a season, not an hour.

In any case, dawn was always the first hour, noon the 6th, sunset the 12th. Same deal for night (twilight, midnight, pre-dawn).

This is great for military and civic purposes, but most people tended to refer to daytime divisions more generally: dawn, midday, etc. And there was nothing like minutes or seconds. That’s totally modern. Closest, they might come would be to count “breaths.”

The gnomon (sundial) was the chief way to measure hours, as it matched longer or shorter days. But it’s kinda hard to use a sundial at night, or on a cloudy day, or inside. Night hours were approximate.

The water clock (klepsudra) was first popularized in Greece in courts and the Assembly (to time speeches), but spread to other use, for inside or on shady days. Yet water clocks are unwieldy to carry around.

The Romans did have portable sundials (below), but again…needs the SUN. Btw, I should add that sundials aren’t only a Greco-Roman thing. The Chinese had them too. By contrast, the sand-clock or hourglass is a medieval invention. Won’t find them in the ancient world.

Premo ato is 12 noon. It tells time and also describes an action. An action of a cannon (premo) going off (ato). In the early days of time-keeping. A cannon will go off at noon to mark and tell the time of the hour. It is this action that we call premo ato.

Sima or nsiama means second (in time-keeping). This is its first primary meaning. Its second meaning is children of 60 or divisions of 60 or six little children. nSia (six). Root word (si) also forms the root of the word, six. Ma (child/children). A circle or 360 degrees. Divided into 60 equal parts, which gives you 6 degrees each. Each degree represents a hand on the clock. The minute hand equals 48 in total, and the hour hand equals 12. Together, they make 60. Hence, sima or nsiama (second/seconds) also means children of 60, divisions of 60, six little children or, as you will call it, 60 seconds in a minute.

You speak English, yes. We speak the blueprint languages. The languages that first formulated the knowledge systems of the world.

Programming time, dates, timezones, recurring events, leap seconds... everything is pretty terrible. The common refrain in the industry is Just use UTC! Just use UTC! And that's correct... sort of. But if you're stuck building software that deals with time, there's so much more to consider.