[xwiki-users] getMonth() and January ?

Hello, I put a new field in the user page to see the last login of each for statistics purposes. On november and december last year it rans perfectly. But on january, the month is only on 1 letter ! The macro : {{velocity}} #set($date_ll = $datetool.getYear()+ '/' + $datetool.getMonth() + '/' + $datetool.getDay()) #set($name = $xcontext.getLocalUser()) #set($myDoc = $xwiki.getDocument($name)) #set($obj = $myDoc.getObject('XWiki.XWikiUsers')) #set($discard = $obj.set("last_login", "$date_ll")) #set($discard = $myDoc.save()) {{/velocity}} Result for today : "2014/0/6" Last month I got 2014/12/06 for example. is there some strange behaviour withe the getMonth() function ? thanks Cordialement Stéphane Lassire Chargé de l'informatique et de la communication Tél direct : 01 42 85 81 87 Courriel : slassire(a)cesap.asso.fr