diff --git a/qa/standalone/scrub/osd-scrub-test.sh b/qa/standalone/scrub/osd-scrub-test.sh
index fe374e22119..febffdebd55 100755
--- a/qa/standalone/scrub/osd-scrub-test.sh
+++ b/qa/standalone/scrub/osd-scrub-test.sh
@@ -187,6 +187,49 @@ function TEST_interval_changes() {
     teardown $dir || return 1
 }
 
+function TEST_scrub_extented_sleep() {
+    local dir=$1
+    local poolname=test
+    local OSDS=3
+    local objects=15
+
+    TESTDATA="testdata.$$"
+
+    setup $dir || return 1
+    run_mon $dir a --osd_pool_default_size=3 || return 1
+    run_mgr $dir x || return 1
+    local scrub_begin_hour=$(date -d '2 hour ago' +"%H" | sed 's/^0//')
+    local scrub_end_hour=$(date -d '1 hour ago' +"%H" | sed 's/^0//')
+    for osd in $(seq 0 $(expr $OSDS - 1))
+    do
+      run_osd $dir $osd --osd_scrub_sleep=0 \
+                        --osd_scrub_extended_sleep=10 \
+                        --bluestore_cache_autotune=false \
+                        --osd_scrub_begin_hour=$scrub_begin_hour \
+                        --osd_scrub_end_hour=$scrub_end_hour || return 1
+    done
+
+    # Create a pool with a single pg
+    create_pool $poolname 1 1
+    wait_for_clean || return 1
+
+    # Trigger a scrub on a PG
+    local pgid=$(get_pg $poolname SOMETHING)
+    local primary=$(get_primary $poolname SOMETHING)
+    local last_scrub=$(get_last_scrub_stamp $pgid)
+    CEPH_ARGS='' ceph daemon $(get_asok_path osd.$primary) trigger_scrub $pgid || return 1
+
+    # Due to the long delay, the scrub should not be done within 3 seconds
+    for ((i=0; i < 3; i++)); do
+        if test "$(get_last_scrub_stamp $pgid)" '>' "$last_scrub" ; then
+            return 1
+        fi
+        sleep 1
+    done
+
+    teardown $dir || return 1
+}
+
 main osd-scrub-test "$@"
 
 # Local Variables:
diff --git a/src/common/legacy_config_opts.h b/src/common/legacy_config_opts.h
index 6260580808f..ddf7b73ec54 100644
--- a/src/common/legacy_config_opts.h
+++ b/src/common/legacy_config_opts.h
@@ -720,6 +720,7 @@ OPTION(osd_scrub_backoff_ratio, OPT_DOUBLE)   // the probability to back off the
 OPTION(osd_scrub_chunk_min, OPT_INT)
 OPTION(osd_scrub_chunk_max, OPT_INT)
 OPTION(osd_scrub_sleep, OPT_FLOAT)   // sleep between [deep]scrub ops
+OPTION(osd_scrub_extended_sleep, OPT_FLOAT)   // more sleep between [deep]scrub ops
 OPTION(osd_scrub_auto_repair, OPT_BOOL)   // whether auto-repair inconsistencies upon deep-scrubbing
 OPTION(osd_scrub_auto_repair_num_errors, OPT_U32)   // only auto-repair when number of errors is below this threshold
 OPTION(osd_deep_scrub_interval, OPT_FLOAT) // once a week
diff --git a/src/common/options.cc b/src/common/options.cc
index 2475921f444..efbf788fe9b 100644
--- a/src/common/options.cc
+++ b/src/common/options.cc
@@ -3523,6 +3523,14 @@ std::vector<Option> get_global_options() {
     .set_default(0)
     .set_description("Duration to inject a delay during scrubbing"),
 
+    Option("osd_scrub_extended_sleep", Option::TYPE_FLOAT, Option::LEVEL_ADVANCED)
+    .set_default(0)
+    .set_description("Duration to inject a delay during scrubbing out of scrubbing hours")
+    .add_see_also("osd_scrub_begin_hour")
+    .add_see_also("osd_scrub_end_hour")
+    .add_see_also("osd_scrub_begin_week_day")
+    .add_see_also("osd_scrub_end_week_day"),
+
     Option("osd_scrub_auto_repair", Option::TYPE_BOOL, Option::LEVEL_ADVANCED)
     .set_default(false)
     .set_description("Automatically repair damaged objects detected during scrub"),
diff --git a/src/osd/OSD.cc b/src/osd/OSD.cc
index 194373008d2..c3966026c1d 100644
--- a/src/osd/OSD.cc
+++ b/src/osd/OSD.cc
@@ -7246,6 +7246,20 @@ bool OSDService::ScrubJob::ScrubJob::operator<(const OSDService::ScrubJob& rhs)
   return pgid < rhs.pgid;
 }
 
+double OSD::scrub_sleep_time(bool must_scrub)
+{
+  if (must_scrub) {
+    return cct->_conf->osd_scrub_sleep;
+  }
+  utime_t now = ceph_clock_now();
+  if (scrub_time_permit(now)) {
+    return cct->_conf->osd_scrub_sleep;
+  }
+  double normal_sleep = cct->_conf->osd_scrub_sleep;
+  double extended_sleep = cct->_conf->osd_scrub_extended_sleep;
+  return std::max(extended_sleep, normal_sleep);
+}
+
 bool OSD::scrub_time_permit(utime_t now)
 {
   struct tm bdt;
diff --git a/src/osd/OSD.h b/src/osd/OSD.h
index 7d5a55dc407..742a4e0269e 100644
--- a/src/osd/OSD.h
+++ b/src/osd/OSD.h
@@ -1890,6 +1890,8 @@ protected:
     return service.get_tid();
   }
 
+  double scrub_sleep_time(bool must_scrub);
+
   // -- generic pg peering --
   PeeringCtx create_context();
   void dispatch_context(PeeringCtx &ctx, PG *pg, OSDMapRef curmap,
diff --git a/src/osd/PG.cc b/src/osd/PG.cc
index 4e7fbc08f39..88d86957ad9 100644
--- a/src/osd/PG.cc
+++ b/src/osd/PG.cc
@@ -2441,7 +2441,9 @@ void PG::replica_scrub(
  */
 void PG::scrub(epoch_t queued, ThreadPool::TPHandle &handle)
 {
-  if (cct->_conf->osd_scrub_sleep > 0 &&
+  OSDService *osds = osd;
+  double scrub_sleep = osds->osd->scrub_sleep_time(scrubber.must_scrub);
+  if (scrub_sleep > 0 &&
       (scrubber.state == PG::Scrubber::NEW_CHUNK ||
        scrubber.state == PG::Scrubber::INACTIVE) &&
        scrubber.needs_sleep) {
@@ -2449,7 +2451,6 @@ void PG::scrub(epoch_t queued, ThreadPool::TPHandle &handle)
     dout(20) << __func__ << " state is INACTIVE|NEW_CHUNK, sleeping" << dendl;
 
     // Do an async sleep so we don't block the op queue
-    OSDService *osds = osd;
     spg_t pgid = get_pgid();
     int state = scrubber.state;
     auto scrub_requeue_callback =
@@ -2474,7 +2475,7 @@ void PG::scrub(epoch_t queued, ThreadPool::TPHandle &handle)
           pg->unlock();
         });
     std::lock_guard l(osd->sleep_lock);
-    osd->sleep_timer.add_event_after(cct->_conf->osd_scrub_sleep,
+    osd->sleep_timer.add_event_after(scrub_sleep,
                                            scrub_requeue_callback);
     scrubber.sleeping = true;
     scrubber.sleep_start = ceph_clock_now();