Running twice within a second when second is fixed

[aateek-albanero]

I am trying to trigger a job once at a specific moment - 2021-06-14T18:14:00.000Z. But the job is being triggered twice. The code is given below:

const later = require('@breejs/later');

const schedule = {
  schedules: [
    {
      year: [2021],
      month: [6],
      day: [14],
      hour: [18],
      minute: [14],
      second: [0],
    },
  ],
};

later.setInterval(() => {
  console.log(`[${new Date().toISOString()}] Job triggered`);
}, schedule);

Output of the above code:

[2021-06-14T18:14:00.681Z] Job triggered
[2021-06-14T18:14:01.702Z] Job triggered

Why is the job being triggered twice? Also, if I don't specify second then job is triggered every second in 14th minute of the mentioned date and time. Is this the expected behaviour? Could anyone please help?

I don't want to use setTimeout as I want to keep the schedule generic.

[shadowgate15]

This is an invalid schedule. Schedules are defined with s, m, etc. See documentation.