To use Google Now on a smartphone you can pick up your phone and say “OK Google”... and then your phone is listening. You can use your voice on the Google app or Chrome to do things like search Google, get travel directions, and create personal reminders. For example, you can say "Ok Google do I need an umbrella today?" to see if there's rain in the weather forecast. The data below suggests people use Google Now to find out the time in the UK (at least) an average of 2,400 times a month in the UK according to Keyword Planner research data. It also apparent that people are testing it with phrases that they learnt from ads for the Google Now system which ran on UK television (see
https://vimeo.com/98800802) e.g. “ok google show me pictures of a ladybird cake” for which there are (at least) on average 1.9K searches a month in the UK on Google.