Duration of Pluto Retrograde motion = 163 Days
Notes: All timings are represented in 24+ hour notation in local time of Fairfield, United States with DST adjustment (if applicable).
Hours past midnight are higher than 24:00 and fall on next day. In Panchang day starts and ends with sunrise.
Before Pluto becomes retrograde it enters into retrograde zone and starts slowing down. Before it becomes stationary and starts moving into backward direction, it keeps moving into forward direction with retarded speed. Pluto remains into stationary motion for some moments before it starts moving backward. The time when Pluto just starts moving backward is noted down during our calculations.
The same is true while Pluto becomes progressive i.e. when it starts moving into forward direction. Before Pluto becomes progressive it remains into retrograde zone and starts moving into forward direction till it gains full speed. The time when Pluto just starts moving into forward direction (gaining full speed and leaving retrograde zone takes some more time) is noted down during our calculations.
In sum, each retrograde zone has four points namely, Shadow, Retro Station, Direct Station and Release. We list only Retro Station and Direct Station for Pluto.