### Description The new `hoveranywhere` and `clickanywhere` functionality introduced in PR #7707 appears to return timestamps in ms since 1970 for the UTC (or axis-internal time) instead of the actual hovered/clicked data coordinate in local time. In the example, when hovering or clicking at the very beginning of a date axis range that starts at local midnight, the returned timestamp is shifted by the local timezone offset. ### Reproduction JSFiddle: https://jsfiddle.net/mky0s84a/1/ Using the following setup: ```js const startOfDay = new Date(); startOfDay.setHours(0, 0, 0, 0); const now = new Date(); const layout_time = { xaxis: { type: 'date', range: [startOfDay, now] }, hoveranywhere: true, clickanywhere: true }; gd.on('plotly_hover', function(data) { console.log(new Date(data.xvals[0]).toISOString()); }); gd.on('plotly_click', function(data) { console.log(new Date(data.xvals[0]).toISOString()); }); ``` ### Steps to Reproduce 1. Open the JSFiddle. 2. Hover or click at the extreme left side of the plot area. 3. Inspect the logged value from `data.xvals[0]`. ### Expected Behavior The returned value should correspond to the actual x-coordinate under the cursor. For a user in UTC+2, hovering/clicking at local midnight on 2026-05-31 should return: ```text 2026-05-30T22:00:00.000Z ``` because that is the UTC representation of local midnight. ### Actual Behavior The returned value is: ```text 2026-05-31T00:00:00.000Z ``` which corresponds to midnight UTC rather than the hovered local-time position on the axis. ### Notes * The axis range is initialized using JavaScript `Date` objects in local time. * The issue is reproducible for both `hoveranywhere` and `clickanywhere`. * Existing point hover behavior appears to correctly account for timezone conversion, while the anywhere-events seem to return a different timestamp basis. * It looks like the coordinate returned by `data.xvals[0]` may be using an internal UTC axis value instead of the user-visible axis coordinate. ### Environment * Plotly.js version containing PR #7707 * Browser: (fill in) * OS: (fill in) * Timezone tested: UTC+2 (Europe/Berlin)