const { DateTime } = require("luxon");
let startingTimeOfDay = null;
const ADVANCE_RESERVATION_FURTHEST_DAY = 0;
startingTimeOfDay = "08:00";
let now = DateTime.now().toUTC()
if (startingTimeOfDay) {
let t = startingTimeOfDay.split(':')
let startingHour = t[0]
let startingMinutes = t[1]
now = DateTime.now().toUTC().startOf('day').plus({ hours: startingHour, minutes: startingMinutes })
}
console.log('startDayTime', now.toISO())
console.log('startBookingTime', DateTime.fromISO("2021-10-14T13:30:01.587+05:30", {zone: "UTC"}).toISO())
let startBookingTime = DateTime.fromISO("2021-10-14T13:29:00.587+05:30", {zone: "UTC"})
console.log(Math.floor(startBookingTime.diff(now, 'days').days))