strapi/packages/strapi-plugin-content-manager/admin/src/utils/DATE_FORMATS.js

const DATE_FORMATS = {
  date: 'dddd, MMMM Do YYYY',
  datetime: 'dddd, MMMM Do YYYY HH:mm',
  time: 'HH:mm A',
  timestamp: 'dddd, MMMM Do YYYY HH:mm',
};

export default DATE_FORMATS;