diff --git a/src/goals/goals.service.ts b/src/goals/goals.service.ts
index 3a6b62b..87aabaf 100644
--- a/src/goals/goals.service.ts
+++ b/src/goals/goals.service.ts
@@ -30,10 +30,10 @@ export class GoalsService {
       const goal = await Goal.create({
         userId,
         ...createGoalDto,
-        startDate: new Date(createGoalDto.startDate),
+        startDate: createGoalDto.startDate ? new Date(createGoalDto.startDate) : null,
         endDate: createGoalDto.endDate ? new Date(createGoalDto.endDate) : null,
-        startTime: createGoalDto.startTime,
-        endTime: createGoalDto.endTime,
+        startTime: createGoalDto.startTime ? createGoalDto.startTime : null,
+        endTime: createGoalDto.endTime ? createGoalDto.endTime : null,
       });
 
       this.logger.log(`用户 ${userId} 创建了目标: ${goal.title}`);