# Localization (JavaScript Scheduler) | DayPilot Pro for JavaScript Demo

> Read more about the [scheduler localization](https://doc.daypilot.org/scheduler/localization/) [doc.daypilot.org].

## Links

- Canonical HTML: /demo/scheduler/localization.html
- Source HTML folder: /demo/scheduler/
- Catalog root: /demo/
- Catalog: /demo/llms.txt

## Source

### Inline demo script 1

```javascript
const nav = new DayPilot.Navigator("nav", {
            showMonths: 1,
            selectMode: "month",
            locale: "de-de",
            timeRangeSelectedHandling: "JavaScript",
            onTimeRangeSelected: args => {
                console.log("timeRangeSelected");
                dp.startDate = args.start;
                dp.days = DayPilot.DateUtil.daysDiff(args.start, args.end);
                dp.update();
            }
        });
        nav.init();

        const dp = new DayPilot.Scheduler("dp", {
            locale: "de-de",
            timeHeaders: [{groupBy: 'Month'}, {groupBy: 'Week'}, {groupBy: 'Cell'}],
            startDate: DayPilot.Date.today().firstDayOfMonth(),
            days: DayPilot.Date.today().daysInMonth(),
            scale: "Day",
            resources: [
                {name: "Room A", id: "A"},
                {name: "Room B", id: "B"},
                {name: "Room C", id: "C"}
            ],
            onTimeRangeSelected: async args => {
                const modal = await DayPilot.Modal.prompt("New event name:", "Event");
                dp.clearSelection();
                if (modal.canceled) {
                    return;
                }
                const name = modal.result;
                dp.events.add({
                    start: args.start,
                    end: args.end,
                    id: DayPilot.guid(),
                    resource: args.resource,
                    text: name
                });
                dp.message("Created");
            }
        });
        dp.init();

        const app = {
            init() {
                this.addEventHandlers();
                this.loadEventData();
            },
            addEventHandlers() {
                document.querySelector("#locale").addEventListener("change", function(ev) {
                    const locale = this.value;

                    dp.update({locale});
                    nav.update({locale});
                });
            },
            loadEventData() {
                const events = [];

                for (var i = 0; i < 10; i++) {
                    var duration = Math.floor(Math.random() * 6) + 1; // 1 to 6
                    var start = Math.floor(Math.random() * 6) - 3; // -3 to 3

                    var e = {
                        start: new DayPilot.Date("2026-03-25T00:00:00").addHours(start),
                        end: new DayPilot.Date("2026-03-25T12:00:00").addHours(start).addHours(duration),
                        id: DayPilot.guid(),
                        resource: "A",
                        text: "Event"
                    };
                    events.push(e);
                }

                dp.update({events});
            }
        };
        app.init();
```