What is a culture-invariant way of constructing a string such that the Javascript Date() constructor can parse it and create the proper date object?

I have tried these format strings which don't work (using C# to generate the strings):

clientDate.ToString();

// gives: 11/05/2009 17:35:23 +00:00



clientDate.ToString(MMM' 'dd', 'yyyy' 'h':'mm':'ss' 'tt);

// works on an English server

// but on a French server, gives: mai 11, 2009 5:35:23

// Javascript won't parse that.



clientDate.ToString(MM'-'dd'-'yyyy' 'HH':'mm':'ss)

// gives: 05-11-2009 17:35:23

What is the universal format??