@narmafzam/jalali-datepicker/src/es6/date.js

just a jalali-datepicker

const DateUtil = {

    convert24hTo12(hour) {
        let output = hour;
        if (hour > 12) {
            output = hour - 12;
        }
        if (hour === 0) {
            output = 0;
        }
        return output;
    }
};

module.exports = DateUtil;