diff --git a/backup.sh b/backup.sh
index 39ed934..1312c91 100755
--- a/backup.sh
+++ b/backup.sh
@@ -39,7 +39,7 @@ on_error() {
   local tail_log
   log "ERROR" "脚本异常退出（exit=$exit_code, line=${line_no})."
   tail_log="$(tail -n 80 "${LOG_FILE:-./backup.log}" 2>/dev/null || true)"
-  tg_backup_error "$LABEL" "$(date +'%Y-%m-%d %H:%M:%S')" "脚本异常退出（exit=${exit_code}, line=${line_no}）" "$tail_log"
+  tg_backup_error "$LABEL" "脚本异常退出（exit=${exit_code}, line=${line_no}）" "$tail_log"
   exit "$exit_code"
 }
 trap on_error ERR
@@ -525,7 +525,7 @@ gen_sha
 if $DRY_RUN; then
   log "INFO" "Dry-run 模式：不执行上传。归档：${ARCHIVE_BASE} 大小：${BACKUP_SIZE_HUMAN}"
   log "INFO" "本次总用时：${SECONDS}s"
-  tg_backup_dryrun "$LABEL" "$(date +'%Y-%m-%d %H:%M:%S')" "$(printf '%s\n' "${BACKUP_PATHS[@]}")" "$(tg_read_user_excludes "$USER_EXCLUDE_FILE")" "$ARCHIVE_BASE" "$BACKUP_SIZE_HUMAN" "${PACK_SECONDS}s"
+  tg_backup_dryrun "$LABEL" "$(printf '%s\n' "${BACKUP_PATHS[@]}")" "$(tg_read_user_excludes "$USER_EXCLUDE_FILE")" "$ARCHIVE_BASE" "$BACKUP_SIZE_HUMAN" "${PACK_SECONDS}s"
   if $SELF_CHECK; then
     rm -f "$ARCHIVE_PATH" "$SHA_PATH" || true
     log "INFO" "Self-check 模式：已删除本地自检归档与校验文件"
@@ -538,7 +538,7 @@ retry 3 "上传到 OBS" upload || { log "ERROR" "上传失败"; exit 4; }
 if ! verify_remote; then
   local_tail_log="$(tail -n 80 "${LOG_FILE:-./backup.log}" 2>/dev/null || true)"
   log "ERROR" "上传后完整性校验失败"
-  tg_backup_error "$LABEL" "$(date +'%Y-%m-%d %H:%M:%S')" "上传后完整性校验失败：${ARCHIVE_BASE}" "$local_tail_log"
+  tg_backup_error "$LABEL" "上传后完整性校验失败：${ARCHIVE_BASE}" "$local_tail_log"
   exit 5
 fi
 
@@ -550,6 +550,6 @@ fi
 TOTAL_SECS=$SECONDS
 SPEED_HUMAN="$(numfmt --to=iec "$AVG_SPEED")/s"
 log "INFO" "完成：归档大小=${BACKUP_SIZE_HUMAN} 打包=${PACK_SECONDS}s 上传=${UP_SECONDS}s 平均速率=${SPEED_HUMAN} 总用时=${TOTAL_SECS}s"
-tg_backup_success "$LABEL" "$(date +'%Y-%m-%d %H:%M:%S')" "$(printf '%s\n' "${BACKUP_PATHS[@]}")" "$(tg_read_user_excludes "$USER_EXCLUDE_FILE")" "$BACKUP_SIZE_HUMAN" "$ARCHIVE_BASE" "obs://${OBS_BUCKET}/${OBS_BACKUP_DIR}/${ARCHIVE_BASE}" "${PACK_SECONDS}s" "${UP_SECONDS}s" "$SPEED_HUMAN"
+tg_backup_success "$LABEL" "$(printf '%s\n' "${BACKUP_PATHS[@]}")" "$(tg_read_user_excludes "$USER_EXCLUDE_FILE")" "$BACKUP_SIZE_HUMAN" "$ARCHIVE_BASE" "obs://${OBS_BUCKET}/${OBS_BACKUP_DIR}/${ARCHIVE_BASE}" "${PACK_SECONDS}s" "${UP_SECONDS}s" "$SPEED_HUMAN"
 
 exit 0
diff --git a/clean_backups.sh b/clean_backups.sh
index bb709d4..5b8cce2 100755
--- a/clean_backups.sh
+++ b/clean_backups.sh
@@ -29,7 +29,7 @@ on_error() {
   local tail_log
   log "ERROR" "清理异常退出（exit=${exit_code})"
   tail_log="$(tail -n 80 "${LOG_FILE:-./backup.log}" 2>/dev/null || true)"
-  tg_clean_error "$LABEL" "$(date +'%Y-%m-%d %H:%M:%S')" "脚本异常退出（exit=${exit_code}）" "$tail_log"
+  tg_clean_error "$LABEL" "脚本异常退出（exit=${exit_code}）" "$tail_log"
   exit "$exit_code"
 }
 trap on_error ERR
@@ -89,7 +89,7 @@ LIST_OUT="$(mktemp)"
 if ! obsutil ls "obs://${OBS_BUCKET}/${TARGET_PREFIX}" >"$LIST_OUT" 2>/dev/null; then
   log "ERROR" "无法列举 obs://${OBS_BUCKET}/${TARGET_PREFIX}"
   rm -f "$LIST_OUT"
-  tg_clean_error "$LABEL" "$(date +'%Y-%m-%d %H:%M:%S')" "无法列举 obs://${OBS_BUCKET}/${TARGET_PREFIX}" ""
+  tg_clean_error "$LABEL" "无法列举 obs://${OBS_BUCKET}/${TARGET_PREFIX}" ""
   exit 6
 fi
 
@@ -136,7 +136,7 @@ else
   done
 fi
 
-tg_clean_success "$LABEL" "$(date +'%Y-%m-%d %H:%M:%S')" "obs://${OBS_BUCKET}/${TARGET_PREFIX}" "${RETAIN_DAYS}" "${#TO_KEEP[@]}" "${DEL_OK}" "${DEL_FAIL}"
+tg_clean_success "$LABEL" "obs://${OBS_BUCKET}/${TARGET_PREFIX}" "${RETAIN_DAYS}" "${#TO_KEEP[@]}" "${DEL_OK}" "${DEL_FAIL}"
 if (( DEL_FAIL > 0 )); then
   exit 6
 fi
diff --git a/lib/telegram.sh b/lib/telegram.sh
index 499211f..e97691b 100755
--- a/lib/telegram.sh
+++ b/lib/telegram.sh
@@ -79,7 +79,7 @@ tg_read_user_excludes() {
 }
 
 tg_backup_success() {
-  local label="$1" current_date="$2" backup_dirs="$3" user_excludes="$4" backup_size="$5" archive_name="$6" location="$7" pack_time="$8" upload_time="$9" speed="${10}"
+  local label="$1" backup_dirs="$2" user_excludes="$3" backup_size="$4" archive_name="$5" location="$6" pack_time="$7" upload_time="$8" speed="$9"
   local archive_info message
   archive_info=$(
     cat <<EOF
@@ -93,7 +93,6 @@ EOF
   )
   message="*备份成功*"$'\n\n'
   message+="*主机*"$'\n'"$(tg_code_block "$label")"$'\n'
-  message+="*时间*"$'\n'"$(tg_code_block "$current_date")"$'\n'
   message+="*备份内容*"$'\n'"$(tg_code_block "$backup_dirs")"$'\n'
   message+="*用户排除*"$'\n'"$(tg_code_block "$user_excludes")"$'\n'
   message+="*归档信息*"$'\n'"$(tg_code_block "$archive_info")"
@@ -101,7 +100,7 @@ EOF
 }
 
 tg_backup_dryrun() {
-  local label="$1" current_date="$2" backup_dirs="$3" user_excludes="$4" archive_name="$5" backup_size="$6" pack_time="$7"
+  local label="$1" backup_dirs="$2" user_excludes="$3" archive_name="$4" backup_size="$5" pack_time="$6"
   local archive_info message
   archive_info=$(
     cat <<EOF
@@ -112,7 +111,6 @@ EOF
   )
   message="*备份自检*"$'\n\n'
   message+="*主机*"$'\n'"$(tg_code_block "$label")"$'\n'
-  message+="*时间*"$'\n'"$(tg_code_block "$current_date")"$'\n'
   message+="*备份内容*"$'\n'"$(tg_code_block "$backup_dirs")"$'\n'
   message+="*用户排除*"$'\n'"$(tg_code_block "$user_excludes")"$'\n'
   message+="*归档信息*"$'\n'"$(tg_code_block "$archive_info")"
@@ -120,11 +118,10 @@ EOF
 }
 
 tg_backup_error() {
-  local label="$1" current_date="$2" reason="$3" error_log="$4"
+  local label="$1" reason="$2" error_log="$3"
   local message
   message="*备份失败*"$'\n\n'
   message+="*主机*"$'\n'"$(tg_code_block "$label")"$'\n'
-  message+="*时间*"$'\n'"$(tg_code_block "$current_date")"$'\n'
   message+="*原因*"$'\n'"$(tg_code_block "$reason")"
   if [[ -n "$error_log" ]]; then
     message+=$'\n'"*错误日志*"$'\n'"$(tg_code_block "$error_log")"
@@ -133,7 +130,7 @@ tg_backup_error() {
 }
 
 tg_clean_success() {
-  local label="$1" current_date="$2" prefix="$3" retain_days="$4" keep_count="$5" del_ok="$6" del_fail="$7"
+  local label="$1" prefix="$2" retain_days="$3" keep_count="$4" del_ok="$5" del_fail="$6"
   local summary message
   summary=$(
     cat <<EOF
@@ -146,17 +143,15 @@ EOF
   )
   message="*清理完成*"$'\n\n'
   message+="*主机*"$'\n'"$(tg_code_block "$label")"$'\n'
-  message+="*时间*"$'\n'"$(tg_code_block "$current_date")"$'\n'
   message+="*结果*"$'\n'"$(tg_code_block "$summary")"
   tg_send_message "$message"
 }
 
 tg_clean_error() {
-  local label="$1" current_date="$2" reason="$3" error_log="$4"
+  local label="$1" reason="$2" error_log="$3"
   local message
   message="*清理失败*"$'\n\n'
   message+="*主机*"$'\n'"$(tg_code_block "$label")"$'\n'
-  message+="*时间*"$'\n'"$(tg_code_block "$current_date")"$'\n'
   message+="*原因*"$'\n'"$(tg_code_block "$reason")"
   if [[ -n "$error_log" ]]; then
     message+=$'\n'"*错误日志*"$'\n'"$(tg_code_block "$error_log")"