const cal = CalendarApp.getCalendarById('ja.japanese#holiday@group.v.calendar.google.com');
const fullYear = new Date().getFullYear();
const [startDate, endDate] = [new Date(fullYear, 0, 1), new Date(fullYear, 11, 31)];
const events = cal.getEvents(startDate, endDate);
for (const value of events) {
[value.getTitle(), new Date(value.getStartTime().setHours(8)), new Date(value.getEndTime().setHours(-4))]);
new Date(fullYear, 11, 29),
new Date(fullYear, 11, 30),
new Date(fullYear, 11, 31),
new Date(fullYear, 0, 2),
for (const value of companyEvents) {
holidays.push(['年末年始休暇', new Date(value.setHours(8)), new Date(value.setHours(20))]);