I set expiry time to 24 hours, but the documents expire after around 5-10 minutes (I haven't timed it exactly). What am I doing wrong? My schema:

const collectionSchema = new mongoose.Schema({
  userId: {
    type: mongoose.Schema.Types.ObjectId,
    ref: "User"
  name: {
    type: String,
    maxLength: 30,
    required: true
  entries: [{ type: mongoose.Schema.Types.ObjectId, ref: "Entry" }],
  expireAt: { type: Date, expires: 60 * 60 * 24 }

In the post route, I conditionally set the date so that inlogged clients get data persistence.

router.post("/", auth, async (req, res) => {
  let date = null;
  if (!req.user) {
    date = new Date();
  try {
    const collection = {
      userId: req.body.userId,
      name: req.body.name,
      expireAt: date
    const newCollection = await Collection.create(collection);
  } catch (error) {

I thought I had a time-zone problem, but when I check the time stamp in MongoDB compass, it matches my time-zone. What am I doing wrong?

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