| Title | 
                
                    Test
                    Find
                    
                    Pattern Title
                 | 
            
            
                | Expression | 
                ^(((((0[1-9])|(1\d)|(2[0-8]))/((0[1-9])|(1[0-2])))|((31/((0[13578])|(1[02])))|((29|30)/((0[1,3-9])|(1[0-2])))))/((20[0-9][0-9]))|((((0[1-9])|(1\d)|(2[0-8]))/((0[1-9])|(1[0-2])))|((31/((0[13578])|(1[02])))|((29|30)/((0[1,3-9])|(1[0-2])))))/((19[0-9][0-9]))|(29/02/20(([02468][048])|([13579][26])))|(29/02/19(([02468][048])|([13579][26]))))$  | 
            
            
                | Description | 
                This expression is an improved version of Jörg Maag. It checks a date field in the Australian DD/MM/YYYY format. Besides, it also validates leap year between 1900 and 2099.  | 
            
            
                | Matches | 
                29/02/1992 | 29/02/2000 | 29/02/2004  | 
            
            
                | Non-Matches | 
                29/02/1892 | 29/02/2100 | 29/02/3004  | 
            
            
                | Author | 
                
                    Rating:
                        
Not yet rated.
                    Yik Kheam Tan
                 | 
            
            
                | Source | 
                Yik Kheam Tan | 
            
            
              | Your Rating | 
              
                
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	                Title: Mr
	                Name: Ravi
	                Date: 6/29/2006 6:16:39 AM
	                Comment: 
Australian date  format (dd/MM/yyyy) is also UK date format. and this has been extremely good 
                
                
            
                
	                Title: Mr.
	                Name: Olaniyi
	                Date: 11/4/2004 7:23:51 AM
	                Comment: 
Fantastic