" be reminded what Jesus said in Matthew 25:13. And notice how He put it- He said, Keep on the watch therefore, because you know neither the day nor the hour. So, not knowing behooves us to really be alert, to be vigilant, to be watchful. And when we keep on the watch, it allows you and I to develop this waiting attitude on Jehovah. To be patient, and to be content and satisfied not knowing the day or the hour. …..We’re going to consider 5 beneficial reasons as to why not knowing the day or the hour can help us. "
From a 2010 Convention talk. A whole talk about the benefits of not knowing the day or the hour. FIVE of them.