exports.local = function(year, month, day, hours, minutes, seconds, milliseconds) {

var date = new Date();

date.setFullYear(year, month, day);

date.setHours(hours || 0, minutes || 0, seconds || 0, milliseconds || 0);

return date;

};

exports.utc = function(year, month, day, hours, minutes, seconds, milliseconds) {

var date = new Date();

date.setUTCFullYear(year, month, day);

date.setUTCHours(hours || 0, minutes || 0, seconds || 0, milliseconds || 0);

return date;

};

exports.zone = function(tz, scope) {

return function() {

var o = process.env.TZ;

try {

process.env.TZ = tz;

new Date(0).toString(); // invalidate node's dst cache

new Date().toString();

scope.apply(this, arguments);

} finally {

process.env.TZ = o;

new Date(0).toString(); // invalidate node's dst cache

new Date().toString();

}

};

};