diff --git a/api/v1/objectstore_types.go b/api/v1/objectstore_types.go
index 80c4742..c33f085 100644
--- a/api/v1/objectstore_types.go
+++ b/api/v1/objectstore_types.go
@@ -75,6 +75,12 @@ type RecoveryWindow struct {
 
 	// The last successful backup time
 	LastSuccessfulBackupTime *metav1.Time `json:"lastSuccussfulBackupTime,omitempty"`
+
+	// The timestamp of the first WAL file successfully submitted to the object store
+	FirstWALSubmissionTime *metav1.Time `json:"firstWALSubmissionTime,omitempty"`
+
+	// The timestamp of the last WAL file successfully submitted to the object store
+	LastWALSubmissionTime *metav1.Time `json:"lastWALSubmissionTime,omitempty"`
 }
 
 // +kubebuilder:object:root=true
diff --git a/api/v1/zz_generated.deepcopy.go b/api/v1/zz_generated.deepcopy.go
index 11fb2ae..f7b60c4 100644
--- a/api/v1/zz_generated.deepcopy.go
+++ b/api/v1/zz_generated.deepcopy.go
@@ -157,6 +157,14 @@ func (in *RecoveryWindow) DeepCopyInto(out *RecoveryWindow) {
 		in, out := &in.LastSuccessfulBackupTime, &out.LastSuccessfulBackupTime
 		*out = (*in).DeepCopy()
 	}
+	if in.FirstWALSubmissionTime != nil {
+		in, out := &in.FirstWALSubmissionTime, &out.FirstWALSubmissionTime
+		*out = (*in).DeepCopy()
+	}
+	if in.LastWALSubmissionTime != nil {
+		in, out := &in.LastWALSubmissionTime, &out.LastWALSubmissionTime
+		*out = (*in).DeepCopy()
+	}
 }
 
 // DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new RecoveryWindow.
diff --git a/config/crd/bases/barmancloud.cnpg.io_objectstores.yaml b/config/crd/bases/barmancloud.cnpg.io_objectstores.yaml
index 6fb87b5..7dfcddd 100644
--- a/config/crd/bases/barmancloud.cnpg.io_objectstores.yaml
+++ b/config/crd/bases/barmancloud.cnpg.io_objectstores.yaml
@@ -609,10 +609,20 @@ spec:
                         restored.
                       format: date-time
                       type: string
+                    firstWALSubmissionTime:
+                      description: The timestamp of the first WAL file successfully
+                        submitted to the object store
+                      format: date-time
+                      type: string
                     lastSuccussfulBackupTime:
                       description: The last successful backup time
                       format: date-time
                       type: string
+                    lastWALSubmissionTime:
+                      description: The timestamp of the last WAL file successfully
+                        submitted to the object store
+                      format: date-time
+                      type: string
                   type: object
                 description: ServerRecoveryWindow maps each server to its recovery
                   window
diff --git a/internal/cnpgi/common/wal.go b/internal/cnpgi/common/wal.go
index 0da8a39..ef8dfbc 100644
--- a/internal/cnpgi/common/wal.go
+++ b/internal/cnpgi/common/wal.go
@@ -17,6 +17,7 @@ import (
 	walUtils "github.com/cloudnative-pg/machinery/pkg/fileutils/wals"
 	"github.com/cloudnative-pg/machinery/pkg/log"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 
@@ -184,6 +185,12 @@ func (w WALServiceImplementation) Archive(
 		}
 	}
 
+	// Update WAL submission timing in ObjectStore status after successful archiving
+	if err := w.updateWALSubmissionTime(ctx, &objectStore, configuration.ServerName); err != nil {
+		contextLogger.Error(err, "failed to update WAL submission time in ObjectStore status")
+		// Don't fail the archiving operation for status update errors
+	}
+
 	return &wal.WALArchiveResult{}, nil
 }
 
@@ -469,3 +476,30 @@ func isEndOfWALStream(results []barmanRestorer.Result) bool {
 
 	return false
 }
+
+// updateWALSubmissionTime updates the WAL submission timing in the ObjectStore status
+func (w WALServiceImplementation) updateWALSubmissionTime(
+	ctx context.Context,
+	objectStore *barmancloudv1.ObjectStore,
+	serverName string,
+) error {
+	now := metav1.NewTime(time.Now())
+
+	if objectStore.Status.ServerRecoveryWindow == nil {
+		objectStore.Status.ServerRecoveryWindow = make(map[string]barmancloudv1.RecoveryWindow)
+	}
+
+	recoveryWindow := objectStore.Status.ServerRecoveryWindow[serverName]
+
+	// Set first WAL submission time if not already set
+	if recoveryWindow.FirstWALSubmissionTime == nil {
+		recoveryWindow.FirstWALSubmissionTime = &now
+	}
+
+	// Always update last WAL submission time
+	recoveryWindow.LastWALSubmissionTime = &now
+
+	objectStore.Status.ServerRecoveryWindow[serverName] = recoveryWindow
+
+	return w.Client.Status().Update(ctx, objectStore)
+}
diff --git a/internal/cnpgi/instance/retention.go b/internal/cnpgi/instance/retention.go
index 6b68dfb..37f475e 100644
--- a/internal/cnpgi/instance/retention.go
+++ b/internal/cnpgi/instance/retention.go
@@ -176,14 +176,21 @@ func (c *CatalogMaintenanceRunnable) updateRecoveryWindow(
 		return ptr.To(metav1.NewTime(*t))
 	}
 
-	recoveryWindow := barmancloudv1.RecoveryWindow{
-		FirstRecoverabilityPoint: convertTime(backupList.GetFirstRecoverabilityPoint()),
-		LastSuccessfulBackupTime: convertTime(backupList.GetLastSuccessfulBackupTime()),
-	}
-
 	if objectStore.Status.ServerRecoveryWindow == nil {
 		objectStore.Status.ServerRecoveryWindow = make(map[string]barmancloudv1.RecoveryWindow)
 	}
+
+	// get existing recovery window to preserve WAL submission timing
+	existingWindow := objectStore.Status.ServerRecoveryWindow[serverName]
+
+	recoveryWindow := barmancloudv1.RecoveryWindow{
+		FirstRecoverabilityPoint: convertTime(backupList.GetFirstRecoverabilityPoint()),
+		LastSuccessfulBackupTime: convertTime(backupList.GetLastSuccessfulBackupTime()),
+		// preserve existing WAL submission timing
+		FirstWALSubmissionTime: existingWindow.FirstWALSubmissionTime,
+		LastWALSubmissionTime:  existingWindow.LastWALSubmissionTime,
+	}
+
 	objectStore.Status.ServerRecoveryWindow[serverName] = recoveryWindow
 
 	return c.Client.Status().Update(ctx, objectStore)
diff --git a/manifest.yaml b/manifest.yaml
index c43ef4b..7dc9f0b 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -608,10 +608,20 @@ spec:
                         restored.
                       format: date-time
                       type: string
+                    firstWALSubmissionTime:
+                      description: The timestamp of the first WAL file successfully
+                        submitted to the object store
+                      format: date-time
+                      type: string
                     lastSuccussfulBackupTime:
                       description: The last successful backup time
                       format: date-time
                       type: string
+                    lastWALSubmissionTime:
+                      description: The timestamp of the last WAL file successfully
+                        submitted to the object store
+                      format: date-time
+                      type: string
                   type: object
                 description: ServerRecoveryWindow maps each server to its recovery
                   window