diff --git a/doc/filters.texi b/doc/filters.texi
index d2b8feb14b..a8af563551 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -17936,6 +17936,9 @@ Common @ref{subtitles}/@ref{ass} filter options:
 @item filename, f
 Set the filename of the subtitle file to read. It must be specified.
 
+@item shift
+Shift subtitles timings by the specified amount.
+
 @item original_size
 Specify the size of the original video, the video for which the ASS file
 was composed. For the syntax of this option, check the
@@ -17949,6 +17952,9 @@ These fonts will be used in addition to whatever the font provider uses.
 
 @item alpha
 Process alpha channel, by default alpha channel is untouched.
+
+@item shift
+Shift subtitles timings by the specified amount.
 @end table
 
 Additional options for @ref{subtitles} filter:
@@ -17995,6 +18001,11 @@ To make the subtitles stream from @file{sub.srt} appear in 80% transparent blue
 subtitles=sub.srt:force_style='Fontname=DejaVu Serif,PrimaryColour=&HCCFF0000'
 @end example
 
+To re-sync subtitles after seeking the input e.g. with @code{-ss 20:20}, use:
+@example
+subtitles=filename=sub.srt:shift='-20\:20'
+@end example
+
 @section super2xsai
 
 Scale the input by 2x and smooth using the Super2xSaI (Scale and
diff --git a/libavfilter/vf_subtitles.c b/libavfilter/vf_subtitles.c
index 1bd42391e0..09cca6aab8 100644
--- a/libavfilter/vf_subtitles.c
+++ b/libavfilter/vf_subtitles.c
@@ -52,6 +52,7 @@ typedef struct AssContext {
     char *filename;
     char *fontsdir;
     char *charenc;
+    int64_t shift;
     char *force_style;
     int stream_index;
     int alpha;
@@ -66,11 +67,12 @@ typedef struct AssContext {
 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
 #define COMMON_OPTIONS \
-    {"filename",       "set the filename of file to read",                         OFFSET(filename),   AV_OPT_TYPE_STRING,     {.str = NULL},  0, 0, FLAGS }, \
-    {"f",              "set the filename of file to read",                         OFFSET(filename),   AV_OPT_TYPE_STRING,     {.str = NULL},  0, 0, FLAGS }, \
-    {"original_size",  "set the size of the original video (used to scale fonts)", OFFSET(original_w), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL},  0, 0, FLAGS }, \
-    {"fontsdir",       "set the directory containing the fonts to read",           OFFSET(fontsdir),   AV_OPT_TYPE_STRING,     {.str = NULL},  0, 0, FLAGS }, \
-    {"alpha",          "enable processing of alpha channel",                       OFFSET(alpha),      AV_OPT_TYPE_BOOL,       {.i64 = 0   },         0,        1, FLAGS }, \
+    {"filename",       "set the filename of file to read",                         OFFSET(filename),   AV_OPT_TYPE_STRING,     {.str = NULL},         0,         0, FLAGS }, \
+    {"f",              "set the filename of file to read",                         OFFSET(filename),   AV_OPT_TYPE_STRING,     {.str = NULL},         0,         0, FLAGS }, \
+    {"original_size",  "set the size of the original video (used to scale fonts)", OFFSET(original_w), AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL},         0,         0, FLAGS }, \
+    {"fontsdir",       "set the directory containing the fonts to read",           OFFSET(fontsdir),   AV_OPT_TYPE_STRING,     {.str = NULL},         0,         0, FLAGS }, \
+    {"alpha",          "enable processing of alpha channel",                       OFFSET(alpha),      AV_OPT_TYPE_BOOL,       {.i64 = 0   },         0,         1, FLAGS }, \
+    {"shift",          "shift subtitles timing",                                   OFFSET(shift),      AV_OPT_TYPE_DURATION,   {.i64 = 0   }, INT64_MIN, INT64_MAX, FLAGS }, \
 
 /* libass supports a log level ranging from 0 to 7 */
 static const int ass_libavfilter_log_level_map[] = {
@@ -103,6 +105,11 @@ static av_cold int init(AVFilterContext *ctx)
         return AVERROR(EINVAL);
     }
 
+    if (ass->shift != 0) {
+        ass->shift = av_rescale_q(ass->shift, AV_TIME_BASE_Q, av_make_q(1, 1000));
+        av_log(ctx, AV_LOG_INFO, "Shifting subtitles by %0.3fsec.\n", ass->shift/1000.0);
+    }
+
     ass->library = ass_library_init();
     if (!ass->library) {
         av_log(ctx, AV_LOG_ERROR, "Could not initialize libass.\n");
@@ -227,6 +234,8 @@ AVFILTER_DEFINE_CLASS(ass);
 
 static av_cold int init_ass(AVFilterContext *ctx)
 {
+    int eid, nskip;
+    ASS_Event *event;
     AssContext *ass = ctx->priv;
     int ret = init(ctx);
 
@@ -243,6 +252,24 @@ static av_cold int init_ass(AVFilterContext *ctx)
                ass->filename);
         return AVERROR(EINVAL);
     }
+
+    /* Shift subtitles. */
+    nskip = 0;
+    for (eid = 0; eid < ass->track->n_events; eid++) {
+        event = &ass->track->events[eid];
+        event->Start += ass->shift;
+        if (event->Start + event->Duration < 0) {
+            ass_free_event(ass->track, eid);
+            nskip++;
+            continue;
+        } else if (nskip > 0) {
+            av_log(ctx, AV_LOG_INFO, "Skipped %d subtitles out of time range.\n", nskip);
+            memmove(event - nskip, event, (ass->track->n_events - eid) * sizeof(ASS_Event));
+            ass->track->n_events -= nskip;
+            nskip = 0;
+        }
+    }
+
     return 0;
 }
 
@@ -297,7 +324,7 @@ AVFILTER_DEFINE_CLASS(subtitles);
 
 static av_cold int init_subtitles(AVFilterContext *ctx)
 {
-    int j, ret, sid;
+    int j, ret, sid, nskip;
     int k = 0;
     AVDictionary *codec_opts = NULL;
     AVFormatContext *fmt = NULL;
@@ -448,6 +475,7 @@ static av_cold int init_subtitles(AVFilterContext *ctx)
     av_init_packet(&pkt);
     pkt.data = NULL;
     pkt.size = 0;
+    nskip = 0;
     while (av_read_frame(fmt, &pkt) >= 0) {
         int i, got_subtitle;
         AVSubtitle sub = {0};
@@ -458,8 +486,18 @@ static av_cold int init_subtitles(AVFilterContext *ctx)
                 av_log(ctx, AV_LOG_WARNING, "Error decoding: %s (ignored)\n",
                        av_err2str(ret));
             } else if (got_subtitle) {
-                const int64_t start_time = av_rescale_q(sub.pts, AV_TIME_BASE_Q, av_make_q(1, 1000));
+                /* Shift subtitles. */
+                const int64_t start_time = av_rescale_q(sub.pts, AV_TIME_BASE_Q, av_make_q(1, 1000)) + ass->shift;
                 const int64_t duration   = sub.end_display_time;
+
+                if (start_time + duration < 0) {
+                    nskip++;
+                    goto pkt_end;
+                } else if (nskip > 0) {
+                    av_log(ctx, AV_LOG_INFO, "Skipped %d subtitles out of time range.\n", nskip);
+                    nskip = 0;
+                }
+
                 for (i = 0; i < sub.num_rects; i++) {
                     char *ass_line = sub.rects[i]->ass;
                     if (!ass_line)
@@ -472,6 +510,8 @@ static av_cold int init_subtitles(AVFilterContext *ctx)
                 }
             }
         }
+
+pkt_end:
         av_packet_unref(&pkt);
         avsubtitle_free(&sub);
     }
