diff --git a/src/main/ets/utils/TimeHelper.ts b/src/main/ets/utils/TimeHelper.ts
index b24321d..8ec4e3b 100644
--- a/src/main/ets/utils/TimeHelper.ts
+++ b/src/main/ets/utils/TimeHelper.ts
@@ -72,4 +72,24 @@ export class TimeHelper {
   static getMonthDays(year: number, month: number) {
     return new Date(year, month, 0).getDate()
   }
+
+  /**
+   * 是不是同一天
+   * @param date1
+   * @param date2
+   * @returns
+   */
+  static isSameDay(date1: Date | number, date2?: Date | number) {
+    if (typeof date1 === 'number') {
+      date1 = new Date(date1);
+    }
+    if (!date2) {
+      date2 = new Date();
+    } else if (typeof date2 === 'number') {
+      date2 = new Date(date2);
+    }
+    return date1.getFullYear() === date2.getFullYear() &&
+      date1.getMonth() === date2.getMonth() &&
+      date1.getDate() === date2.getDate();
+  }
 }