Is there any data about what time there is maximum people visiting puzzling S.E ?
This data may be on views of a question that is posted at a particular time of the day.
Here's a picture where the points are connected more aesthetically.
Here is a graph:
You can find the info at a data query here: http://data.stackexchange.com/puzzling/query/145483/when-people-are-online#graph
So it looks like the peak is at 2:00PM, UTC time.