Mayan calendar dates

There are three Mayan calendars: the famous "long count" calendar, the "Haab" calendar, and the "Tzolkin" calendar. Of these, only the long count calendar can be converted to and from other calendars, so it is the only one that has been implemented here.

Usage

mayan_date(
  baktun = integer(),
  katun = integer(),
  tun = integer(),
  uinal = integer(),
  kin = integer()
)

as_mayan(date)

Arguments

baktun

Numeric vector

katun

Numeric vector

tun

Numeric vector

uinal

Numeric vector

kin

Numeric vector

date

Vector of dates on some calendar

Value

A mayan vector object

Details

The Mayan long count calendar is a vigesimal (base-20) calendar with five components: kin (1 day), uinal (20 kin), tun (18 uinal), katun (20 tun), and baktun (20 katun). So the full cycle repeats every 20x18x20x20 = 144,000 days (approximately 394 years).

See also

cal_mayan

Examples

gregorian_date(2012, 12, 10:30) |>
  as_mayan()
#> <mayan[21]>
#>  [1] 12-19-17-19-09 12-19-17-19-10 12-19-17-19-11 12-19-17-19-12 12-19-17-19-13
#>  [6] 12-19-17-19-14 12-19-17-19-15 12-19-17-19-16 12-19-17-19-17 12-19-17-19-18
#> [11] 12-19-17-19-19 13-00-00-00-00 13-00-00-00-01 13-00-00-00-02 13-00-00-00-03
#> [16] 13-00-00-00-04 13-00-00-00-05 13-00-00-00-06 13-00-00-00-07 13-00-00-00-08
#> [21] 13-00-00-00-09