diff --git a/internal/tasks/dailyAggregate.go b/internal/tasks/dailyAggregate.go
index 2658ac4..2b4564a 100644
--- a/internal/tasks/dailyAggregate.go
+++ b/internal/tasks/dailyAggregate.go
@@ -24,7 +24,8 @@ func (c *CronTask) RunVcenterDailyAggregate(ctx context.Context, logger *slog.Lo
 		defer func() {
 			logger.Info("Daily summary job finished", "duration", time.Since(startedAt))
 		}()
-		targetTime := time.Now().Add(-time.Minute)
+		// Aggregate the previous day to avoid partial "today" data when the job runs just after midnight.
+		targetTime := time.Now().AddDate(0, 0, -1)
 		// Always force regeneration on the scheduled run to refresh data even if a manual run happened earlier.
 		return c.aggregateDailySummary(jobCtx, targetTime, true)
 	})