Waiting time for Remarry in Australia

It is illegal to remarry before the divorce becomes final and to do so is bigamy which is an offence. Your second marriage will not be legal.

Your Divorce will not become final until the expiration of one month after the divorce was granted and it is recommended that you wait until you receive the Certificate of Divorce prior to remarrying.

This is usually received a five or six weeks after the hearing.

Source: http://www.mcgowanfamilylaw.com.au/FAQ.htm