diff --git a/src/util.ts b/src/util.ts
new file mode 100644
index 0000000..0e3e03c
--- /dev/null
+++ b/src/util.ts
@@ -0,0 +1,30 @@
+export namespace Util {
+    /**
+     * Get date time string.
+     * 
+     * Example: Oct 17, 2024, 11:26:47 PM EDT
+     */
+    export function getDateString(value?: string) {
+        const date = value ? new Date(value) : new Date();
+
+        return date.toLocaleString(undefined, {
+            year: 'numeric',
+            month: 'short',
+            day: 'numeric',
+            hour: 'numeric',
+            minute: 'numeric',
+            second: "numeric",
+            hour12: true,
+            timeZoneName: 'short'
+        });
+    }
+
+    /**
+     * Get time duration in seconds.
+     */
+    export function getTimeDuration(startValue: string, endValue: string) {
+        const start = new Date(startValue).getTime();
+        const end = new Date(endValue).getTime();
+        return ((end - start) / 1000).toFixed(0).toString();
+    }
+}
\ No newline at end of file
diff --git a/src/views/history/history.ts b/src/views/history/history.ts
index b25f2a7..dac281a 100644
--- a/src/views/history/history.ts
+++ b/src/views/history/history.ts
@@ -1,5 +1,6 @@
 import { ThemeColor, ThemeIcon, TreeItem, TreeItemCollapsibleState } from "vscode";
 import { History, HistoryStatus } from "../../act";
+import { Util } from "../../util";
 import { GithubLocalActionsTreeItem } from "../githubLocalActionsTreeItem";
 
 export default class HistoryTreeItem extends TreeItem implements GithubLocalActionsTreeItem {
@@ -12,12 +13,10 @@ export default class HistoryTreeItem extends TreeItem implements GithubLocalActi
 
         let totalDuration: string | undefined;
         if (history.date) {
-            const start = new Date(history.date.start).getTime();
-            const end = new Date(history.date.end).getTime();
-            totalDuration = `${((end - start) / 1000).toFixed(0).toString()}s`;
-            this.description = totalDuration;
+            totalDuration = `${Util.getTimeDuration(history.date.start, history.date.end)}s`;
         }
 
+        this.description = totalDuration;
         this.contextValue = `${HistoryTreeItem.contextValue}_${history.status}`;
         switch (history.status) {
             case HistoryStatus.Running:
@@ -35,8 +34,8 @@ export default class HistoryTreeItem extends TreeItem implements GithubLocalActi
         }
         this.tooltip = `Name: ${history.name}\n` +
             `Status: ${history.status}\n` +
-            `Started: ${history.date ? history.date.start : 'N/A'}\n` +
-            `Ended: ${history.date ? history.date.end : 'N/A'}\n` +
+            `Started: ${history.date ? Util.getDateString(history.date.start) : 'N/A'}\n` +
+            `Ended: ${history.date ? Util.getDateString(history.date.end) : 'N/A'}\n` +
             (totalDuration ? `Total Duration: ${totalDuration}\n` : ``);
     }