The traditional day-count kept by Maya daykeepers, not the 1990 variant.
Tzolk’in, Haab’ and Long Count on the Goodman-Martinez-Thompson correlation, constant 584283. Verified against 0.0.0.0.0 = 4 Ahau 8 Cumku and 13.0.0.0.0 = 4 Ahau 3 Kankin.
This is not Dreamspell. That system was created in 1987–90, treats 29 February as a day outside the count, and drifts from the traditional count. No galactic signatures, no wavespells, no 13 Moon calendar here.
Why no birth time: all three counts advance one whole day at a time, so the time of day does not change the result. The only case where it could is a birth close to midnight, and daykeeping traditions differ on the hour the day turns, so the calendar date you enter is used as it is.