The time for what? If you want to pay any attention to political polls - and I sure hope you haven't paid a minute's worth of attention to them so far - the time when they start to mean something is coming. Why? Like all of the mass media news, polls can do one of two things: they can tell a narrative or they can tell the truth. Since about the start of the primary season last year, polls have been used to set up a narrative.
As you know, the big campaigns hire their own full time pollsters. That's how Kellyanne Conway ended up running Trump's campaign and working in the White House. She ran a polling company, called (imaginatively enough) The Polling Company, and predicted better than the others along the way. For lower profile (and lower budget) campaigns, they can either hire pollsters or just read them in the paper like we do. Being right is marketable.
While researching my previous writings to see if I'd addressed this before, I stumbled across a fun post from almost exactly this day in 2016. There's a college called Chapman University in California that does an annual poll on the greatest fears people have. I found it interesting that the highest percentage of fears was of corrupt government officials. There were some smart people back in 2016!