Function getSetZone

tests/test_code/js/moment/moment.js:3344–3356

(input, keepLocalTime)

    }

    function getSetZone(input, keepLocalTime) {
        if (input != null) {
            if (typeof input !== 'string') {
                input = -input;
            }

            this.utcOffset(input, keepLocalTime);

            return this;
        } else {
            return -this.utcOffset();
        }
    }

    function setOffsetToUTC(keepLocalTime) {
        return this.utcOffset(0, keepLocalTime);