Add changelog for ui-table cannot display locale date/time

src/changelog/2026/08/table-date-time-columns.md

@@ -0,0 +1,27 @@
+---
+title: Date & Time Columns for Tables
+description: FlowFuse Dashboard table columns can now display timestamps as locale-aware dates and times, with no function node or template needed.
+date: 2026-08-27 12:00:00
+authors: ["noley-holland"]
+tags:
+  - changelog
+issues:
+  - https://github.com/FlowFuse/node-red-dashboard/issues/1772
+---
+
+FlowFuse Dashboard's `ui-table` node now formats timestamps. Set a column's **Type** to **Date & Time** and `1754999400000` renders as `Aug 12, 2026, 12:10 PM` instead of the raw number.
+
+Previously, sending a timestamp to a Dashboard table showed either a long epoch number or a UTC string, so you had to reformat it yourself in a function node or template. The table handles it now. Each cell formats in the viewer's own browser locale and timezone, so a UTC timestamp shows in their local time.
+
+The column accepts whatever you already have: an epoch in seconds or milliseconds, an ISO-8601 string, or a `Date`.
+
+Dashboard v1.30.3 or later is required. To get started:
+
+1. On your `ui-table` node, turn off **Auto Columns** and add a column.
+2. Set its **Type** to **Date & Time**, **Date**, or **Time**.
+3. Point its **Value** at the field holding your timestamp.
+
+![A FlowFuse Dashboard ui-table rendering a timestamp as Date & Time, Date, and Time columns](./images/table-date-columns.gif)
+*The same epoch value in three columns, with no function node upstream — the table reads the raw timestamp directly.*
+
+This feature is available to all FlowFuse Cloud users and Self Hosted users from Dashboard v1.30.3.