diff --git a/README.md b/README.md
index 49e86ca..5a21056 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,7 @@ optional arguments:
   --min-distance DISTANCE
                         min distance by km for track filter
   --with-animation      add amimation to the poster
+  --animation-time      amimation duration (default 30s)
 
 Heatmap Type Options:
   --heatmap-center LAT,LNG
diff --git a/gpxtrackposter/circular_drawer.py b/gpxtrackposter/circular_drawer.py
index e2f0944..aa8ce50 100644
--- a/gpxtrackposter/circular_drawer.py
+++ b/gpxtrackposter/circular_drawer.py
@@ -274,7 +274,11 @@ def _draw_circle_segment(
         if self.poster.with_animation:
             path.add(
                 svgwrite.animate.Animate(
-                    "opacity", dur="30s", values=values, keyTimes=key_times, repeatCount="indefinite"
+                    "opacity",
+                    dur=f"{self.poster.animation_time}s",
+                    values=values,
+                    keyTimes=key_times,
+                    repeatCount="indefinite",
                 )
             )
         g.add(path)
diff --git a/gpxtrackposter/cli.py b/gpxtrackposter/cli.py
index ecdd3b1..b20bc2a 100755
--- a/gpxtrackposter/cli.py
+++ b/gpxtrackposter/cli.py
@@ -199,6 +199,13 @@ def main() -> None:
         action="store_true",
         help="If the `poster` contains animation or not",
     )
+    args_parser.add_argument(
+        "--animation-time",
+        dest="animation_time",
+        type=int,
+        default=30,
+        help="Animation show time",
+    )
 
     for _, drawer in drawers.items():
         drawer.create_args(args_parser)
@@ -238,6 +245,7 @@ def main() -> None:
     p.set_athlete(args.athlete)
     p.set_title(args.title if args.title else p.translate("MY TRACKS"))
     p.set_with_animation(args.with_animation)
+    p.set_animation_time(args.animation_time)
 
     p.special_distance = {
         "special_distance": args.special_distance * Units().km,
diff --git a/gpxtrackposter/github_drawer.py b/gpxtrackposter/github_drawer.py
index 0e2e3d2..160bb87 100644
--- a/gpxtrackposter/github_drawer.py
+++ b/gpxtrackposter/github_drawer.py
@@ -92,6 +92,9 @@ def draw(self, dr: svgwrite.Drawing, g: svgwrite.container.Group, size: XY, offs
             rect_x = 10.0
             dom = (2.6, 2.6)
             # add every day of this year for 53 weeks and per week has 7 days
+            animate_index = 1
+            year_count = self.poster.year_tracks_date_count_dict[year]
+            key_times = utils.make_key_times(year_count)
             for _i in range(54):
                 rect_y = offset.y + year_size + 2
                 for _j in range(7):
@@ -113,8 +116,24 @@ def draw(self, dr: svgwrite.Drawing, g: svgwrite.container.Group, size: XY, offs
                                 color = special_color
                         str_length = utils.format_float(self.poster.m2u(length))
                         date_title = f"{date_title} {str_length} {km_or_mi}"
+                        # tricky for may cause animate error
+                        if animate_index < len(key_times) - 1:
+                            animate_index += 1
 
                     rect = dr.rect((rect_x, rect_y), dom, fill=color)
+                    if self.poster.with_animation:
+                        values = (
+                            ";".join(["0"] * animate_index) + ";" + ";".join(["1"] * (len(key_times) - animate_index))
+                        )
+                        rect.add(
+                            svgwrite.animate.Animate(
+                                "opacity",
+                                dur=f"{self.poster.animation_time}s",
+                                values=values,
+                                keyTimes=";".join(key_times),
+                                repeatCount="1",
+                            )
+                        )
                     rect.set_desc(title=date_title)
                     g_year.add(rect)
                     github_rect_day += datetime.timedelta(1)
diff --git a/gpxtrackposter/poster.py b/gpxtrackposter/poster.py
index e8ba098..1be5947 100644
--- a/gpxtrackposter/poster.py
+++ b/gpxtrackposter/poster.py
@@ -74,6 +74,7 @@ def __init__(self) -> None:
         self.tracks_drawer: typing.Optional["TracksDrawer"] = None
         self._trans: typing.Optional[typing.Callable[[str], str]] = None
         self.with_animation = False
+        self.animation_time: int = 30
         self.set_language(None, None)
 
     def set_language(self, language: typing.Optional[str], localedir: typing.Optional[str]) -> None:
@@ -129,6 +130,9 @@ def set_title(self, title: str) -> None:
     def set_with_animation(self, with_animation: bool) -> None:
         self.with_animation = with_animation
 
+    def set_animation_time(self, animation_time: int) -> None:
+        self.animation_time = animation_time
+
     def set_tracks(self, tracks: typing.List[Track]) -> None:
         """Associate the set of tracks with this poster.