const valueToTwoDigits = function (value: number) {
    return ((value < 10) ? '0' : '') + value.toString();
};

// ===================== Date ========================
const days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
const months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];

export const dateToUTCString = (date: Date) => {
    const time = valueToTwoDigits(date.getUTCHours()) + ':' + valueToTwoDigits(date.getUTCMinutes()) + ':' + valueToTwoDigits(date.getUTCSeconds());
    return days[date.getUTCDay()] + ', ' + valueToTwoDigits(date.getUTCDate()) + ' ' + months[date.getUTCMonth()] + ' ' + date.getUTCFullYear() + ' ' + time + ' GMT';
};