Setinterval did not return latest data

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Javascript

Hi, I have a javascript in which I will use setinterval to refresh my data every 5th minute mark and it works wonderfully. But one issue happened, when I pass in new parameter and the page refreshes at 5th minute mark, it used back the old parameter and returns me old data value.
Below are my codes:

if (_clearTimer == 0) {
                            _clearTimer = setInterval(function () {                            
                                var _date = new Date();
                                if ((_date.getMinutes() % 5) == 0) {
                                    MyMethod(param1);
                                }
                            }, 60000);
                        }

So in order to solve that, I have add in a new line of code which is clearInterval(_clearTimer) before the above codes as below:

clearInterval(_clearTimer);
    if (_clearTimer == 0) {
        _clearTimer = setInterval(function () {
            var _date = new Date();
            if ((_date.getMinutes() % 5) == 0) {
                MyMethod(param1);
            }
        }, 60000);
    }

But at the 5th minute mark, it used back the old parameter also. Any codes that I am missing?

What I have tried:

1. Using clearInterval to clear the previous setInterval.