function getTimeString(timeOffset) {
    const hours = `0${(Math.floor(timeOffset / 3600000) + 3) % 24}`.slice(-2),
        minutes = `0${Math.floor(timeOffset / 60000) % 60}`.slice(-2);

    return `${hours}:${minutes}`;
}
Returns a time expression based on a time offset.
@param {number} timeOffset - The number of milliseconds elapsed since the last 3am
@returns {string} Time expression in "hh:mm" format