Why do members of parliament only have 4 minutes to get back to vote on a bill?

When members of parliament are required in the Senate or House of Representatives for a division – a counted vote – the bells ring for 4 minutes. This gives members time to get from wherever they are in Parliament House to either the Senate or House of Representatives in time to vote. If a second division is called straight after the first, the bells are rung again for only 1 minute.

Members of parliament (along with all other building occupants) are alerted to a vote being called by the bells and lights that sound and flash in close to 2600 clocks throughout the building. After the bells have finished ringing, the doors to the Senate or House are locked and all members who arrive after the doors are locked cannot vote in the division.

Clock at Parliament House with red Senate and green House of Representatives lights showing.

A clock at Parliament House.

Parliamentary Education Office (peo.gov.au)

A clock at Parliament House.

Clock at Parliament House with red Senate and green House of Representatives lights showing.

Parliamentary Education Office (peo.gov.au)

Description

This photograph of a clock at Parliament House shows the red and green lights that indicate that the Senate and the House of Representatives bells are ringing.