A calendar based on timeslots which can be set as available, occupied and so on.

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React Timeslot Calendar
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A calendar component which allows users to select and reserve avaiblable timeslots so that they can setup a meeting and/or event.


  • React 15.4.4 and up
  • MomentJS
  • CalendarJS


npm install --save react-timeslot-calendar


import moment from 'moment';
import ReactTimeslotCalendar from 'react-timeslot-calendar';

render() {
  return (


Required Props:

Note: All format strings are read with moment, so any format supported by moment is available here.
  • initialDate (String): An ISO formatted date compatible with momentJS. A moment instance is also a valid input.


  • timeslots (Object): An array of available timeslots in the format:
let timeslots = [
    ['1', '2'], // 1:00 AM - 2:00 AM
    ['2', '3'], // 2:00 AM - 3:00 AM
    ['4', '6'], // 4:00 AM - 6:00 AM
    '5', // 5:00 AM
    ['4', '6', '7', '8'], // 4:00 AM - 6:00 AM - 7:00AM - 8:00AM
By default, one hour timeslots from 12:00AM to 11:00PM are provided.
  • timeslotFormat (Object): How the timeslots will be interpreted by the calendar. By default, the format goes as follows:
let timslotFormat = {
    format: 'h', // Each element in the timeslot array is an Hour
    showFormat: 'h:mm A', // They will be displayed as Hour:Minutes AM/PM

  • disabledTimeslots (Object): Timeslots disabled by default. a startDate and format should be provided. The resulting date must match with one of the timeslots.
// sample:
let disabledTimeslots = {[
        startDate: 'April 30th 2017, 12:00:00 AM',
        format: 'MMMM Do YYYY, h:mm:ss A',
        startDate: 'May 1st 2017, 3:00:00 PM',
        format: 'MMMM Do YYYY, h:mm:ss A',
        startDate: 'May 5th 2017, 6:00:00 PM',
        format: 'MMMM Do YYYY, h:mm:ss A',
  • maxTimeslots (Number): The maximum number of timeslots a user can select. Default value is 1.

  • renderDays (Object): Days of the week to be rendered in the calendar. As an example, if we wanted to remove weekends, all we have to do is pass:
let ignoreWeekends = {
  'saturdays': false,
  'sundays': false,
By default, all week days are displayed.
  • startDateInputProps (Object): Few props to modify how the input for startDate will behave. Only allows name and class.
let startDateInputProps = {
    class: 'some-random-class',
    name: 'my-start-date-input-name',
  • endDateInputProps (Object): Same idea as startDateInputProps but instead takes effect in the endDate input.

  • onSelectTimeslot (Function): A callback which takes as parameters selectedTimeslots (array) and lastSelectedTimeslot (object). Every timeslot object contains startDate and endDate, both of which are MomentJS objects.
let onSelectTimeslot = (allTimeslots, lastSelectedTimeslot) => {
   * All timeslot objects include `startDate` and `endDate`.

   * It is important to note that if timelots provided contain a single
   * value (e.g: timeslots = [['8'], ['9', '10']) then only `startDate` is filled up with
   * the desired information.
  console.log(lastSelectedTimeslot.startDate); // MomentJS object.



We're open to any help and support, so feel free to open up a PR if you happen to have a great idea! Also, feel free to take up any issues (if available).
Feel free to download the project and make up some changes! Dev. environment is run with npm run dev.