diff --git a/src/lib/format-utils.ts b/src/lib/format-utils.ts
index 2d47e81..64acb3c 100644
--- a/src/lib/format-utils.ts
+++ b/src/lib/format-utils.ts
@@ -168,8 +168,10 @@ export function formatResetCountdown(iso?: string, opts?: FormatResetCountdownOp
 
   if (opts?.compactRounded) {
     if (days > 0) return `${days}d`;
-    if (hours > 0) return `${hours}h`;
-    return `${minutes}m`;
+    const halfHours = Math.ceil(diffMinutes / 30);
+    const h = Math.floor(halfHours / 2);
+    if (h > 0) return halfHours % 2 === 1 ? `${h}.5h` : `${h}h`;
+    return `0.5h`;
   }
 
   if (days > 0) return `${days}d ${hours}h`;
diff --git a/tests/format.test.ts b/tests/format.test.ts
index 5db8404..6e22997 100644
--- a/tests/format.test.ts
+++ b/tests/format.test.ts
@@ -149,7 +149,7 @@ describe("formatQuotaRows", () => {
     });
 
     // We don't assert exact time math; just that some countdown marker appears.
-    expect(out).toMatch(/(\d+[dhms]|reset)/);
+    expect(out).toMatch(/([\d.]+[dhms]|reset)/);
   });
 
   it("does not show reset countdown when quota is fully available", () => {
@@ -184,7 +184,7 @@ describe("formatQuotaRows", () => {
       ],
     });
 
-    expect(out).toContain("2h");
+    expect(out).toContain("2.5h");
     expect(out).not.toContain("2h 14m");
   });
 
@@ -207,7 +207,7 @@ describe("formatQuotaRows", () => {
       ],
     });
 
-    expect(out).toContain("14m");
+    expect(out).toContain("0.5h");
     expect(out).not.toContain("0h 14m");
   });
 
diff --git a/tests/tui-sidebar-format.test.ts b/tests/tui-sidebar-format.test.ts
index 0cc0e96..f3843f6 100644
--- a/tests/tui-sidebar-format.test.ts
+++ b/tests/tui-sidebar-format.test.ts
@@ -253,7 +253,7 @@ describe("buildSidebarQuotaPanelLines", () => {
       },
     });
 
-    expect(lines.join("\n")).toContain("2h");
+    expect(lines.join("\n")).toContain("2.5h");
     expect(lines.join("\n")).not.toContain("2h 14m");
   });