mergeTime(time, date) {
    console.log(time);
    console.log(date);
    const dateString = `${date.getDay()}/${date.getMonth()}/${date.getFullYear()}`;
    const timeString = `${time.getHours()}:${time.getMinutes()}:00`;
    const merged = new Date(`${dateString} ${timeString}`);
    console.log(merged);
    return this.timestamp(merged);
}

Tue Apr 24 2018 15:00:00 GMT-0400 (Eastern Daylight Time)

Thu Apr 12 2018 02:42:07 GMT-0400 (Eastern Daylight Time)

Tue Apr 03 2018 15:00:00 GMT-0400 (Eastern Daylight Time)

timestamp(timeString) {
    return new Date(timeString).getTime();
}