The Dreamspell Calendar
Its day-count does not match the traditional 260-day tzolk'in count still kept continuously by day-keepers in the Guatemalan highlands, who have publicly said so. It descends from the same 1987 movement that produced the Harmonic Convergence, not from an unbroken Maya source.
José and Lloydine Argüelles's Dreamspell system (1990–92); the Harmonic Convergence (16–17 August 1987)
A calendar system launched in 1990–92 and marketed as the authentic Maya calendar.