packages/issue-dashboard-widgets/widgets/youtrack-activities-widget/app/date-time.js

function toFechaFormat(pattern) {
  return (pattern || '').
    replace(/y/g, 'Y').
    replace(/d/g, 'D').
    replace('aaa', 'A');
}

function toLocalMidday(timestamp) {
  // eslint-disable-next-line radix
  const date = new Date(parseInt(timestamp));
  return new Date(
    date.getUTCFullYear(),
    date.getUTCMonth(),
    date.getUTCDate(),
    // eslint-disable-next-line no-magic-numbers
    12,
    0,
    0,
    0
  );
}

function getTimeDaysAgo(periodInDays) {
  const date = new Date();
  date.setUTCDate(date.getUTCDate() - periodInDays);
  date.setUTCHours(0, 0, 0, 0);
  return date.getTime();
}

export default {
  toFechaFormat, toLocalMidday, getTimeDaysAgo
};