A speculative essay where, in addition to the previously established human behavioral patterns tracked to the annual sunlight-driven dopamine cycle, a second dopamine "clock" or cycle is proposed in the human brain. This measured cycle starts with a 10-day-long low dopamine phase (with various stages of impulsivity, anxiety, and depression and then the reverse as the dopamine level climbs back up), then a 10-day-long high dopamine phase (with confident and manic behaviors), before diminishing to a 20-day-long normal dopamine phase (with calm and focus), before the cycle starts again with the low dopamine phase. The levels of the primary sunlight-driven cycle and the proposed secondary dopamine cycle aggregated together are considered as the only factors needed to create a calendar map of human temperament. There are nine 40-day-long cycles in the calendar year with the cycles occurring on the same days every year.