Script for AWS Lambda: To judge if at night and to pass the result to the Webhooks of IFTTT.

onBackHome.js

const https = require('https');

const ifttt = event => `https://maker.ifttt.com/trigger/${event}/with/key/${process.env.IFTTT_WEBHOOK_KEY}`;

exports.handler = async (event) => {
  const time = new Date();
  const valid = time.getHours() >= 18;
  const eventId = valid ? 'night' : 'other';
  await new Promise(r => https.get(ifttt(eventId), r));
  const response = { statusCode: 200, body: eventId };
  return response;
};