diff --git a/src/gausskernel/process/postmaster/pgarch.cpp b/src/gausskernel/process/postmaster/pgarch.cpp
index 40a6df836..69e999bab 100644
--- a/src/gausskernel/process/postmaster/pgarch.cpp
+++ b/src/gausskernel/process/postmaster/pgarch.cpp
@@ -698,7 +698,7 @@ static inline void pgarch_UpdateArchiveLastLsn(XLogRecPtr targetLsn)
     t_thrd.arch.last_arch_time = TIME_GET_MILLISEC(tv);
     t_thrd.arch.pitr_task_last_lsn = targetLsn;
     g_instance.archive_obs_cxt.pitr_task_last_lsn = t_thrd.arch.pitr_task_last_lsn;
-    g_instance.archive_obs_cxt.last_arch_time = t_thrd.arch.last_arch_time;
+    g_instance.archive_obs_cxt.last_arch_timestamp = GetCurrentTimestamp();
 }
 
 /*
@@ -1291,7 +1291,7 @@ Datum gs_get_archive_status(PG_FUNCTION_ARGS)
             int ret = 0;
             Datum values[ARCHIVE_STATUS_COLS];
             XLogRecPtr last_arch_lsn = g_instance.archive_obs_cxt.pitr_task_last_lsn;
-            long last_arch_time = g_instance.archive_obs_cxt.last_arch_time;
+            long last_arch_time = g_instance.archive_obs_cxt.last_arch_timestamp;
             /* get the ip address of standby */
             char remoteip[IP_LEN] = {0};
             errno_t rc = strncpy_s(remoteip, IP_LEN, (char *)walsnd->wal_sender_channel.remotehost, IP_LEN - 1);
diff --git a/src/gausskernel/process/threadpool/knl_instance.cpp b/src/gausskernel/process/threadpool/knl_instance.cpp
index c09bc2556..141d8208a 100644
--- a/src/gausskernel/process/threadpool/knl_instance.cpp
+++ b/src/gausskernel/process/threadpool/knl_instance.cpp
@@ -489,7 +489,7 @@ static void knl_g_archive_obs_init(knl_g_archive_obs_context *archive_obs_cxt)
     archive_obs_cxt->archive_slot = (ReplicationSlot*)MemoryContextAllocZero(
         INSTANCE_GET_MEM_CXT_GROUP(MEMORY_CONTEXT_STORAGE), sizeof(ReplicationSlot));
     archive_obs_cxt->sync_walsender_idx = -1;
-    archive_obs_cxt->last_arch_time = 0;
+    archive_obs_cxt->last_arch_timestamp = 0;
     archive_obs_cxt->pitr_task_last_lsn = InvalidXLogRecPtr;
 }
 
diff --git a/src/include/knl/knl_instance.h b/src/include/knl/knl_instance.h
index 4dc228ee2..6ac0dd8a8 100644
--- a/src/include/knl/knl_instance.h
+++ b/src/include/knl/knl_instance.h
@@ -738,7 +738,7 @@ typedef struct knl_g_archive_obs_context {
 
     /* used to show the archive status */
     volatile int sync_walsender_idx;
-    volatile long last_arch_time;
+    volatile long last_arch_timestamp;
     volatile XLogRecPtr pitr_task_last_lsn;
 
     /*