diff --git a/aspnet-core/modules/task-management/LINGYUN.Abp.BackgroundTasks.Quartz/LINGYUN/Abp/BackgroundTasks/Quartz/QuartzJobCreator.cs b/aspnet-core/modules/task-management/LINGYUN.Abp.BackgroundTasks.Quartz/LINGYUN/Abp/BackgroundTasks/Quartz/QuartzJobCreator.cs
index 91e40d67b..43f82c739 100644
--- a/aspnet-core/modules/task-management/LINGYUN.Abp.BackgroundTasks.Quartz/LINGYUN/Abp/BackgroundTasks/Quartz/QuartzJobCreator.cs
+++ b/aspnet-core/modules/task-management/LINGYUN.Abp.BackgroundTasks.Quartz/LINGYUN/Abp/BackgroundTasks/Quartz/QuartzJobCreator.cs
@@ -125,11 +125,21 @@ public class QuartzJobCreator : IQuartzJobCreator, ISingletonDependency
                 triggerBuilder
                     .WithIdentity(KeyBuilder.CreateTriggerKey(job))
                     .WithDescription(job.Description)
-                    .StartAt(Clock.Now.AddSeconds(job.Interval))
                     .EndAt(job.EndTime)
                     .ForJob(KeyBuilder.CreateJobKey(job))
                     .WithPriority((int)job.Priority);
-
+                    
+                // 首次启动时间由 BeginTime 决定，不再使用 Interval 作为"延迟启动"。
+                // Interval 仅在 Persistent 周期任务中表示"重复间隔"。
+                if (job.BeginTime > Clock.Now)
+                {
+                    triggerBuilder.StartAt(job.BeginTime);
+                }
+                else
+                {
+                    triggerBuilder.StartNow();
+                }
+                
                 // Quartz约定. 重复间隔不能为0
                 // fix throw Quartz.SchedulerException: Repeat Interval cannot be zero.
                 var scheduleBuilder = SimpleScheduleBuilder.Create();
@@ -139,14 +149,8 @@ public class QuartzJobCreator : IQuartzJobCreator, ISingletonDependency
                 {
                     scheduleBuilder.WithRepeatCount(maxCount);
                 }
-                if (job.Interval > 0)
-                {
-                    scheduleBuilder.WithIntervalInSeconds(job.Interval);
-                }
-                else
-                {
-                    scheduleBuilder.WithIntervalInSeconds(300);
-                }
+                scheduleBuilder.WithIntervalInSeconds(job.Interval > 0 ? job.Interval : 300);
+
 
                 triggerBuilder.WithSchedule(scheduleBuilder);
 
diff --git a/aspnet-core/modules/task-management/LINGYUN.Abp.BackgroundTasks/LINGYUN/Abp/BackgroundTasks/BackgroundJobManager.cs b/aspnet-core/modules/task-management/LINGYUN.Abp.BackgroundTasks/LINGYUN/Abp/BackgroundTasks/BackgroundJobManager.cs
index edc460e4e..ded32941d 100644
--- a/aspnet-core/modules/task-management/LINGYUN.Abp.BackgroundTasks/LINGYUN/Abp/BackgroundTasks/BackgroundJobManager.cs
+++ b/aspnet-core/modules/task-management/LINGYUN.Abp.BackgroundTasks/LINGYUN/Abp/BackgroundTasks/BackgroundJobManager.cs
@@ -47,33 +47,36 @@ public class BackgroundJobManager : IBackgroundJobManager
         TimeSpan? delay = null)
     {
         var jobConfiguration = Options.GetJob<TArgs>();
-        var interval = 0;
-        if (delay.HasValue)
-        {
-            interval = delay.Value.Seconds;
-        }
-        var jobId = GuidGenerator.Create();
-        var jobArgs = new Dictionary<string, object>
-        {
-            { nameof(TArgs), JsonSerializer.Serialize(args) },
-            { "ArgsType", jobConfiguration.ArgsType.AssemblyQualifiedName },
-            { "JobType", jobConfiguration.JobType.AssemblyQualifiedName },
-            { "JobName", jobConfiguration.JobName },
-        };
-        var jobInfo = new JobInfo
-        {
-            Id = jobId.ToString(),
-            TenantId = CurrentTenant.Id,
-            Name = jobId.ToString(),
-            Group = "BackgroundJobs",
-            Priority = ConverForm(priority),
-            Source = JobSource.System,
-            BeginTime = DateTime.Now,
-            Args = jobArgs,
-            Description = "From the framework background jobs",
-            JobType = JobType.Once,
-            Interval = interval,
-            CreationTime = Clock.Now,
+         // 用 BeginTime 表达延迟启动，避免与 JobInfo.Interval（重复间隔）语义混用。
+         // 原实现使用 delay.Value.Seconds（仅取秒分量 0-59），
+         // 会让 TimeSpan.FromMinutes(5) 这类整分钟/整小时的延迟退化为 0，导致任务立即执行。
+         var now = Clock.Now;
+         var beginTime = now;
+         if (delay.HasValue && delay.Value > TimeSpan.Zero)
+         {
+             beginTime = now.Add(delay.Value);
+         }
+         var jobId = GuidGenerator.Create();
+         var jobArgs = new Dictionary<string, object>
+         {
+             { nameof(TArgs), JsonSerializer.Serialize(args) },
+             { "ArgsType", jobConfiguration.ArgsType.AssemblyQualifiedName },
+             { "JobType", jobConfiguration.JobType.AssemblyQualifiedName },
+             { "JobName", jobConfiguration.JobName },
+         };
+         var jobInfo = new JobInfo
+         {
+             Id = jobId.ToString(),
+             TenantId = CurrentTenant.Id,
+             Name = jobId.ToString(),
+             Group = "BackgroundJobs",
+             Priority = ConverForm(priority),
+             Source = JobSource.System,
+             BeginTime = beginTime,
+             Args = jobArgs,
+             Description = "From the framework background jobs",
+             JobType = JobType.Once,
+             CreationTime = now,
             // 确保不会被轮询入队
             Status = JobStatus.None,
             NodeName = TasksOptions.NodeName,