diff --git a/src/utils/format.ts b/src/utils/format.ts
index 946c59c..488a6a9 100644
--- a/src/utils/format.ts
+++ b/src/utils/format.ts
@@ -1,14 +1,52 @@
 // 通用格式化 / 校验纯函数（无状态，供 composable 与页面复用）。
 
-/** Date → `YYYY-MM-DD` */
-export const formatDate = (date: Date | string): string => {
+/** Date 格式化。支持自定义格式，默认 `YYYY-MM-DD`。
+ *
+ * 支持的 token：
+ * - YYYY / MM / DD / HH / mm / ss（补零）
+ * - M / D / H / m / s（不补零）
+ *
+ * @example
+ * formatDate(new Date())                    // '2026-08-12'
+ * formatDate('2025-12-05', 'YYYY/MM/DD')    // '2025/12/05'
+ * formatDate(date, 'YYYY-MM-DD HH:mm:ss')   // '2026-08-12 09:05:30'
+ */
+export const formatDate = (
+  date: Date | string,
+  format: string = "YYYY-MM-DD"
+): string => {
   const transformedDate = typeof date === "string" ? new Date(date) : date;
   if (Number.isNaN(transformedDate.getTime())) return "";
 
   const year = transformedDate.getFullYear();
-  const month = String(transformedDate.getMonth() + 1).padStart(2, "0");
-  const day = String(transformedDate.getDate()).padStart(2, "0");
-  return `${year}-${month}-${day}`;
+  const month = transformedDate.getMonth() + 1;
+  const day = transformedDate.getDate();
+  const hours = transformedDate.getHours();
+  const minutes = transformedDate.getMinutes();
+  const seconds = transformedDate.getSeconds();
+
+  const pad = (n: number) => String(n).padStart(2, "0");
+
+  // 按长度从长到短替换，避免短 token 干扰
+  const replacements: Array<[string, string]> = [
+    ["YYYY", String(year)],
+    ["MM", pad(month)],
+    ["DD", pad(day)],
+    ["HH", pad(hours)],
+    ["mm", pad(minutes)],
+    ["ss", pad(seconds)],
+    ["M", String(month)],
+    ["D", String(day)],
+    ["H", String(hours)],
+    ["m", String(minutes)],
+    ["s", String(seconds)],
+  ];
+
+  let result = format;
+  for (const [token, value] of replacements) {
+    result = result.split(token).join(value);
+  }
+  return result;
 };
 
 /** 手机号输入格式化：仅保留数字并截断到 11 位。 */
diff --git a/src/views/reception/ReceptionTask.vue b/src/views/reception/ReceptionTask.vue
index 45f06f6..8d07853 100644
--- a/src/views/reception/ReceptionTask.vue
+++ b/src/views/reception/ReceptionTask.vue
@@ -32,7 +32,7 @@
           <div class="flex items-center gap-8">
             <span class="min-w-0 truncate text-[4rem] font-600 leading-none text-[#000]">{{ item.studentName || "-" }}</span>
             <span class="shrink-0 rounded-2 bg-[#E7F2FF] px-4 py-3 text-[2.5rem] leading-none text-[#1580FF]">
-              签到:{{ item.checkinTime }}
+              签到:{{ formatDate(item.checkinTime, "MM-DD HH:mm:ss") }}
             </span>
             <span
               v-if="activeTab === 'available' && item.waitingMinutes > 0"
@@ -89,6 +89,7 @@
   import "vant/es/tabs/style";
   import type { ReceptionTaskDTO } from "@/api/reception";
   import { useReceptionTasks, type ReceptionTaskTab } from "@/composables/useReceptionTasks";
+  import { formatDate } from "@/utils/format";
 
   const tabs: ReadonlyArray<{ label: string; value: ReceptionTaskTab }> = [
     { label: "待接待", value: "available" },