CoreUI Scheduler

CoreUI Scheduler is a resource and time scheduler for planning events across days, weeks, months and resources. Drag to reschedule, resize to adjust, select a range to create — with a full keyboard equivalent for every operation.

<div id="schedulerOverview"></div>

const pad = n => String(n).padStart(2, '0')
const day = offset => {
  const date = new Date()
  date.setDate(date.getDate() - ((date.getDay() + 6) % 7) + offset)
  return `${date.getFullYear()}-${pad(date.getMonth() + 1)}-${pad(date.getDate())}`
}

new coreui.Scheduler(document.getElementById('schedulerOverview'), {
  dayStartHour: 7,
  dayEndHour: 20,
  businessHours: { daysOfWeek: [1, 2, 3, 4, 5], startHour: 9, endHour: 17 },
  events: [
    {
      id: 'standup', title: 'Standup', start: `${day(0)}T09:00`, end: `${day(0)}T09:15`, rrule: 'FREQ=DAILY;COUNT=5'
    },
    {
      id: 'design', title: 'Design review', start: `${day(1)}T10:00`, end: `${day(1)}T11:30`, color: '#2eb85c'
    },
    {
      id: 'sync', title: 'Team sync', start: `${day(1)}T10:30`, end: `${day(1)}T11:00`
    },
    {
      id: 'lunch', title: 'Lunch & learn', start: `${day(2)}T12:00`, end: `${day(2)}T13:00`, color: '#f9b115'
    },
    {
      id: 'retro', title: 'Retro', start: `${day(4)}T15:00`, end: `${day(4)}T16:00`
    },
    {
      id: 'conf', title: 'CoreUI Conf', start: day(4), end: day(6), allDay: true
    }
  ],
  expandToFit: true
})

Why CoreUI Scheduler

• Six views. Day & week, month, agenda, a resource view with columns per room, person or machine — virtualized past a dozen resources — and a horizontal timeline.
• Real recurrence. Events carry raw RFC 5545 RRULE strings; expansion is windowed and DST-correct in any IANA time zone, powered by the Temporal API.
• Accessible by design. Every drag operation has a keyboard equivalent (grab → arrows → confirm) and operations are announced to assistive technologies. See Keyboard & accessibility.
• Themeable. Every knob is a --cui-scheduler-* CSS variable resolving through CoreUI semantic tokens, so light/dark theming works with no extra CSS. See Styling & theming.
• Small. Around 62 KB gzipped with the date engine, recurrence engine and virtualization included — no extra date library to ship.

How it’s built

All scheduling logic — the time model, recurrence expansion, event layout, and the drag/keyboard interaction state machine — lives in a headless, framework-free core. The component you install is a thin rendering layer over it, and every interactive element carries a stable data-part attribute you can target from tests or CSS.

Get started

Head to Installation and the Quickstart, or explore the views from the sidebar.