diff --git a/src/components/cases/time-tab.tsx b/src/components/cases/time-tab.tsx
index b4cd1a1..5e48439 100644
--- a/src/components/cases/time-tab.tsx
+++ b/src/components/cases/time-tab.tsx
@@ -10,7 +10,7 @@ import { useAuth } from "@/lib/auth";
 import { Plus, Trash2, Loader2, FilePlus, PlusCircle, CheckCircle2, Undo2, Download } from "lucide-react";
 import { formatCurrency, formatDate } from "@/lib/format";
 import { ensureMarkedInvoicedPlaceholder } from "@/lib/invoice-generation";
-import { roundToSixth } from "@/lib/timer";
+import { roundToTenth } from "@/lib/timer";
 import { toast } from "sonner";
 import { ImportUnbilledDialog } from "@/components/cases/import-unbilled-dialog";
 import {
@@ -51,9 +51,9 @@ export function CaseTimeTab({ caseRecord, onInvoice }: CaseTimeTabProps) {
     billable: true,
   });
 
-  // Compute total raw hours from hours + minutes inputs, then round UP to 1/6.
+  // Compute total raw hours from hours + minutes inputs, then round UP to 1/10 hr (6 min).
   const rawHours = (parseFloat(form.hours || "0") || 0) + (parseFloat(form.minutes || "0") || 0) / 60;
-  const roundedHours = roundToSixth(rawHours);
+  const roundedHours = roundToTenth(rawHours);
 
   const [fees, setFees] = useState<FeeItem[]>([]);
   const [selectedFeeId, setSelectedFeeId] = useState<string>("");
@@ -125,7 +125,7 @@ export function CaseTimeTab({ caseRecord, onInvoice }: CaseTimeTabProps) {
     setSubmitting(false);
     if (error) toast.error(error.message);
     else {
-      toast.success(`Time entry added (${hours.toFixed(2)} hrs)`);
+      toast.success(`Time entry added (${hours.toFixed(1)} hrs)`);
       setShowForm(false);
       setForm({ ...form, hours: "", minutes: "", description: "" });
       load();
@@ -173,7 +173,7 @@ export function CaseTimeTab({ caseRecord, onInvoice }: CaseTimeTabProps) {
     <div className="space-y-4">
       <div className="flex flex-wrap gap-3 items-center justify-between">
         <div className="flex gap-4 text-sm">
-          <Stat label="Hours" value={totals.hours.toFixed(2)} />
+          <Stat label="Hours" value={totals.hours.toFixed(1)} />
           <Stat label="Billed total" value={formatCurrency(totals.billable)} />
           <Stat label="Unbilled" value={formatCurrency(totals.unbilled)} />
         </div>
@@ -251,7 +251,7 @@ export function CaseTimeTab({ caseRecord, onInvoice }: CaseTimeTabProps) {
                 <Input type="number" step="1" min="0" placeholder="0" value={form.minutes} onChange={(e) => setForm({ ...form, minutes: e.target.value })} />
                 {rawHours > 0 && (
                   <p className="text-[11px] text-muted-foreground">
-                    Billed as {roundedHours.toFixed(2)} hrs (1/6 hr)
+                    Billed as {roundedHours.toFixed(1)} hrs (1/10 hr)
                   </p>
                 )}
               </div>
@@ -302,7 +302,7 @@ export function CaseTimeTab({ caseRecord, onInvoice }: CaseTimeTabProps) {
                   <td className="px-4 py-3 text-muted-foreground whitespace-nowrap">{formatDate(e.work_date)}</td>
                   <td className="px-4 py-3 text-muted-foreground">{e.user?.full_name || e.user?.email}</td>
                   <td className="px-4 py-3 max-w-md">{e.description}</td>
-                  <td className="px-4 py-3 text-right tabular-nums">{Number(e.hours).toFixed(2)}</td>
+                  <td className="px-4 py-3 text-right tabular-nums">{Number(e.hours).toFixed(1)}</td>
                   <td className="px-4 py-3 text-right tabular-nums text-muted-foreground">{formatCurrency(e.hourly_rate)}</td>
                   <td className="px-4 py-3 text-right tabular-nums font-medium">{e.billable ? formatCurrency(Number(e.hours) * Number(e.hourly_rate)) : "—"}</td>
                   <td className="px-4 py-3 text-xs text-muted-foreground">{!e.billable ? "Non-billable" : e.invoice_id ? "Invoiced" : "Unbilled"}</td>