| Title | Test
                    Find
                    
                    Pattern Title | 
            
                | Expression | ^(((0[1-9]|[12]\d|3[01])\/(0[13578]|1[02])\/((19|[2-9]\d)\d{2}))|((0[1-9]|[12]\d|30)\/(0[13456789]|1[012])\/((19|[2-9]\d)\d{2}))|((0[1-9]|1\d|2[0-8])\/02\/((19|[2-9]\d)\d{2}))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$ | 
            
                | Description | dd/MM/yyyy with leap years 100% integrated Valid years : from 1900 to 9999.
As usual, many tests have been made.
This was requested by a user :
http://www.regexlib.com/REDetails.aspx?regexp_id=409 | 
            
                | Matches | 29/02/2000 | 30/04/2003 | 01/01/2003 | 
            
                | Non-Matches | 29/02/2001 | 30-04-2003 | 1/1/1899 | 
            
                | Author | Rating:  Dany Lauener | 
            
                | Source | http://www.regexlib.com/REDetails.aspx?regexp_id=409   by myself | 
            
              | Your Rating |  | 
        
    
 
    
    
     
        
                
	                Title: Thanks Danny
	                Name: Ajay
	                Date: 5/18/2017 8:01:39 AM
	                Comment: 
Perfect Regex for date validation. Great job.
                
                
            
                
	                Title: RegEx
	                Name: shohan
	                Date: 6/18/2011 3:06:40 AM
	                Comment: 
good job
                
                
            
                
	                Title: RegEx
	                Name: shohan
	                Date: 6/18/2011 3:06:14 AM
	                Comment: 
good job
                
                
            
                
	                Title: Pattern Title
	                Name: José Dunstan
	                Date: 6/10/2010 10:33:22 AM
	                Comment: 
Regular Expression successfully validated
                
                
            
                
	                Title: Thanks Danny
	                Name: Sumita Narayanan
	                Date: 8/8/2007 8:07:54 AM
	                Comment: 
This was the one I was looking for.... too gud...very helpfull
                
                
            
                
	                Title: Thanks Danny
	                Name: Sumita Narayanan
	                Date: 8/8/2007 8:06:39 AM
	                Comment: 
This was the one I was looking for.... too gud...very helpfull
                
                
            
                
	                Title: Many Thanks!
	                Name: Genera|
	                Date: 10/7/2005 1:58:46 PM
	                Comment: 
Many Thanks!
                
                
            
                
	                Title: Nice one
	                Name: tola
	                Date: 8/23/2005 10:44:18 AM
	                Comment: 
You have far too much time on your hands, and I love you.
                
                
            
                
	                Title: Spot on!
	                Name: Alastair
	                Date: 6/27/2005 11:02:29 AM
	                Comment: 
Exactly what I needed...thanks.
                
                
            
                
	                Title: Purrrfect!!
	                Name: Deepills
	                Date: 3/16/2005 8:23:12 AM
	                Comment: 
Hey Danny,
I rated it earlier, but din't put the comments!Thanks a lot for the quick help offered:).Cheers!!