Here are two diagrams relating to pos dif.
The first you already know, and shows the trend of the last weeks of
the average PosDif, the interval between the blocks, and the
percentages of the blocks that have a time antecedent also to their
previous block.
As you can see there was a little worsening in the last hour, and the
PosDiff is again dropped and with it the interval between the blocks,
now near 11 seconds.
http://s7.postimg.org/akdqgfmcb/POS_Chart_20151025.gifThis time the "whale" has gone from a timeOffset very close to zero,
it held this condition for several days, but now it is about to -35 seconds.
Even others have moved, but their movement is less noticeable.
My advice is always the same, if your system time is accurate, but the
command "getinfo", reports for timeoffset a value far to zero, try
to restart your wallet and after a while, check it again.
For those curious, below is another chart type.
The graph shows how many blocks have been generated in a period of 12
hours, and they had a certain timeoffset compared with real time, and
how many were addresses to generate them.
http://s22.postimg.org/f0szrgfyp/BI_Hist_20151025.gifIn the top side, there is the trace related to one week ago, on the low side
there are the data related to the last 12 hours.
The isolated peak on the right side is as some have imagined, the small group
of black sheep dispersed (group A), generating blocks in the future and that
day by day increasingly moves away.
out of curiosity what would an ideal timeoffset be would that be zero? I was just looking and mine says 22. Thanks