nl_tokens: Get the offset from GMT of the current date ( equivalent to the format specifier O ) .
pl_tokens: function ( date , colon ) { var offset = <mask> . getTimezoneOffset ( ) ; return ( offset > 0 ? "-" : "+" ) + Ext . String . leftPad ( Math . floor ( Math . abs ( offset ) / 60 ) , 2 , "0" ) + ( colon ? ":" : "" ) + Ext . String . leftPad ( Math . abs ( offset % 60 ) , 2 , "0" ) ; }