Baktuns to Months (baktun to mo)
1 baktun equals 4,731.103308 months (rounded).
How to convert baktuns to months
To convert baktuns to months, multiply the number of baktuns by 4,731.103308. The factor is rounded to 10 significant digits. To go the other way, multiply months by 0.0002113671875.
months = baktuns × 4,731.103308
Example: 10 baktuns = 47,311.03308 months.
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
Baktun (baktun)
20 katuns or 144,000 days (about 394 years). The Long Count completed 13 baktuns on 21 December 2012, a date misread as a doomsday prediction.
The largest unit in everyday Long Count use, the baktun spans 20 katuns, or 144,000 days, about 394.26 tropical years. Dates are written with the baktun count first, so a monument reading 9.15.10.0.0 sits in the ninth baktun, and the Classic period of Maya civilization fell mainly in the eighth and ninth.
Public attention came when the count reached 13.0.0.0.0 on 21 December 2012, under the widely used GMT correlation. Popular writers called it the end of the world, but scholars note there is no evidence the Maya expected that, and the count simply moved on to 14.0.0.0.0. The next such milestone falls in March 2407.
A naming quirk follows from the numbering. The Long Count starts counting from zero, so the baktun that began in 2012 is strictly the fourteenth, though it is usually called the thirteenth. J. Eric S. Thompson judged that usage inaccurate but too entrenched to change. Larger cycles such as the piktun, at 20 baktuns, are rarely attested, and their names are modern coinages.
1 baktun = 12,441,600,000 seconds (exactly).
Sources: Wikipedia: Baktun; Wikipedia: Mesoamerican Long Count calendar; Wikipedia: Maya calendar
Month (mo)
One twelfth of an average Gregorian year: 30.436875 days. Calendar months actually range from 28 to 31 days.
Month and Moon are cognates, and the unit began as the Moon's cycle of phases, about 29.53 days from one new moon to the next. The trouble is that 12 of these fall short of a solar year, so calendars have had to choose. The Islamic calendar stays purely lunar, so its year is about 11 days shorter than the solar year, while the Hebrew calendar is lunisolar, using a 19-year cycle with an extra month. Even the start of a lunar month is still debated between observing the crescent and calculating it.
Gregorian months are a compromise that drifted far from the Moon. Their lengths run from 28 to 31 days, and this site uses their mean of 30.436875 days, one twelfth of the average year. The names also keep Roman history: September to December preserve the Latin numerals for seven to ten, since they were originally the seventh to tenth months, and Quintilis and Sextilis were renamed for Julius Caesar and Augustus. When a contract says month, check whether it means a calendar month or thirty days.
1 month = 2,629,746 seconds (exactly).
Sources: Wikipedia: Month; Wikipedia: Lunar calendar
Related conversions
- Months to baktuns (reverse)
- Baktuns to seconds
- Baktuns to minutes
- Baktuns to hours
- Baktuns to days
- Baktuns to weeks
- Baktuns to years
- Seconds to months
- Minutes to months
- Hours to months
- Days to months
- Weeks to months
- Years to months
- Milliseconds to months
- Microseconds to months
- Nanoseconds to months
- Decades to months
- Centuries to months
- Millennia to months
See all time units.