Angular Filter to display minutes/hours to a time

dateFilter.js

    app.filter('dateFilter', function() {
        return function(date) {
            let oneSec = 1000;
            let oneMin = 60 * oneSec;
            let oneHour = 60 * oneMin;
            let oneDay = 24 * oneHour;

            let now = new Date().getTime();
            let transactionTime = new Date(date).getTime();
            let transactionDate = new Date(date);
            let time = `${(transactionDate.getMonth() + 1).length > 1 ? (transactionDate.getMonth() + 1) : '0' + (transactionDate.getMonth() + 1)}/${transactionDate.getDate()}/${transactionDate.getFullYear()}`;

            let diff = now - transactionTime;
            if (Math.floor(diff / oneHour) > 24) { //if more than 24Hrs return the exact time
                return time
            } else {
                if (Math.floor(diff / oneHour) > 1) { //if more than a hour return in hours
                    return `${Math.floor(diff/oneHour)} hours ago`
                } else {
                    return `${Math.floor(diff/oneMin)} mins ago`
                }

            }
        }
    })

//USAGE : {{post.time | dateFilter}}