Tun (Maya) to Weeks (tun to wk)
1 tun (Maya) equals 51.42857143 weeks (rounded).
How to convert tun (Maya) to weeks
To convert tun (Maya) to weeks, multiply the number of tun (Maya) by 51.42857143. The factor is rounded to 10 significant digits. To go the other way, multiply weeks by 0.01944444444 (rounded).
weeks = tun (Maya) × 51.42857143
Example: 10 tun (Maya) = 514.2857143 weeks.
Months and years are not constant. This site uses the average Gregorian year of 365.2425 days, so one 'year' converts to 365.2425 days, not 365; use 'common year' for exactly 365 days.
About these units
Tun (Maya) (tun)
18 winals or 360 days, the Maya 'year' of the Long Count.
Eighteen winals, or 360 days, make a tun. Scholars often call it the Long Count year, but it is five days shorter than the 365-day civil year, the haabʼ, and about five and a quarter days shorter than the tropical year of roughly 365.24 days. The tun therefore drifts away from the seasons, and the Maya tracked the solar year separately with the haabʼ.
The tun is the third position from the right in a written Long Count date. Its choice of 18 winals is the reason the system is not purely base-20: a strict base-20 count would have given 400 days at this step. The rounded 360-day figure is close to a year while staying a multiple of 20, which suited arithmetic on 20-day units.
The tun is the building block of the longer cycles. Twenty tuns form a katun, and rulers and events were frequently dated by how many tuns had passed. In seconds it equals 31,104,000, about 0.99 of a modern calendar year.
1 tun (Maya) = 31,104,000 seconds (exactly).
Sources: Wikipedia: Maya calendar; Wikipedia: Mesoamerican Long Count calendar; Steve Morse: Mayan Calendar Rules
Week (wk)
Seven days. The seven-day week comes from the ancient Near East and is nearly universal in the modern calendar.
Nothing in the sky produces a seven-day cycle, which makes the week a human invention with a contested pedigree. Babylonians marked the 7th, 14th, 21st and 28th of the lunar month as special, but that was not a continuous cycle. A continuous seven-day cycle tied to the Sabbath is attested in Judaism by the 6th century BC at the latest, and scholars disagree on whether it was borrowed from Babylon or developed independently. The Romans later used a week named for the Sun, the Moon and the five visible planets, and in AD 321 Emperor Constantine decreed it across the empire.
A week is seven days, or 604,800 seconds, and it divides evenly into neither months nor years, which is why calendars shift against it. The ISO 8601 standard starts each week on Monday and assigns week 1 to the week containing the year's first Thursday, so some years have a week 53. Other societies used different lengths: Rome had an eight-day market cycle, and revolutionary France used a ten-day week from 1793 to 1802. The English word comes from Old English wice, meaning a turn or succession.
1 week = 604,800 seconds (exactly).
Sources: Wikipedia: Week; Wikipedia: ISO week date
Related conversions
- Weeks to tun (Maya) (reverse)
- Tun (Maya) to seconds
- Tun (Maya) to minutes
- Tun (Maya) to hours
- Tun (Maya) to days
- Tun (Maya) to months
- Tun (Maya) to years
- Seconds to weeks
- Minutes to weeks
- Hours to weeks
- Days to weeks
- Months to weeks
- Years to weeks
- Milliseconds to weeks
- Microseconds to weeks
- Nanoseconds to weeks
- Decades to weeks
- Centuries to weeks
- Millennia to weeks
See all time units.