Query Profiler - Display date time in current time zone (#21454)

* Change to display date time in current timezone for the machine

* test fix

---------

Co-authored-by: Allan Cascante <acascante@microsoft.com>

Author: allancascante

extensions/mssql/src/profiler/profilerConfigService.ts

@@ -281,14 +281,21 @@ export class ProfilerConfigService {
     }
 
     /**
-     * Format a timestamp for display.
-     * Converts timestamp to ISO 8601 format: "YYYY-MM-DD HH:mm:ss.sss"
+     * Format a timestamp for display in the local machine timezone.
+     * Format: "YYYY-MM-DD HH:mm:ss.SSS" (matching SSMS display)
      * Example output: "2026-01-29 14:30:45.123"
      */
     private formatTimestamp(timestamp: number): string {
         try {
             const date = new Date(timestamp);
-            return date.toISOString().replace("T", " ").replace("Z", "");
+            const year = date.getFullYear();
+            const month = String(date.getMonth() + 1).padStart(2, "0");
+            const day = String(date.getDate()).padStart(2, "0");
+            const hours = String(date.getHours()).padStart(2, "0");
+            const minutes = String(date.getMinutes()).padStart(2, "0");
+            const seconds = String(date.getSeconds()).padStart(2, "0");
+            const ms = String(date.getMilliseconds()).padStart(3, "0");
+            return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}.${ms}`;
         } catch {
             return String(timestamp);
         }

extensions/mssql/test/unit/profiler/profilerConfigService.test.ts

@@ -305,9 +305,14 @@ suite("ProfilerConfigService Tests", () => {
             const event = createTestEvent({ timestamp: testTimestamp });
             const viewRow = configService.convertEventToViewRow(event, view);
 
-            // Should be formatted as ISO string without T and Z
-            expect(viewRow.StartTime).to.include("2024-01-15");
-            expect(viewRow.StartTime).to.include("10:30:00");
+            // Should be formatted in local timezone as "YYYY-MM-DD HH:mm:ss.SSS"
+            const localYear = String(testTimestamp.getFullYear());
+            const localMonth = String(testTimestamp.getMonth() + 1).padStart(2, "0");
+            const localDay = String(testTimestamp.getDate()).padStart(2, "0");
+            const localHours = String(testTimestamp.getHours()).padStart(2, "0");
+            const localMinutes = String(testTimestamp.getMinutes()).padStart(2, "0");
+            expect(viewRow.StartTime).to.include(`${localYear}-${localMonth}-${localDay}`);
+            expect(viewRow.StartTime).to.include(`${localHours}:${localMinutes}:00`);
         });
     });
 
@@ -778,7 +783,7 @@ suite("ProfilerConfigService Tests", () => {
             });
             const typedRow = configService.convertEventToTypedRow(event, view);
 
-            // Timestamp is formatted as "2024-06-15 10:30:00.000" by getColumnValue,
+            // Timestamp is formatted in local timezone by getColumnValue,
             // then coerced back to a Date by coerceToColumnType
             expect(typedRow.StartTime).to.be.an.instanceOf(Date);
             const startTime = typedRow.StartTime as Date;