'Only PM, God know when election will be'

Only the prime minister and God know when the 2016 election will be held, the federal director of the Liberal Party has told a parliamentary committee.

Family First Senator Bob Day on Tuesday used a hearing of an inquiry into planned changes to the way the Senate is elected to attempt to ask Tony Nutt when Australians would be going to the polls.

"The news is that only God and Malcolm Turnbull know when the election will be and neither of them have told me," Mr Nutt replied before the question was ruled out of order.