diff --git a/apps/lang/english-us.lang b/apps/lang/english-us.lang
index db078e77af..d1f8c108ce 100644
--- a/apps/lang/english-us.lang
+++ b/apps/lang/english-us.lang
@@ -16984,3 +16984,73 @@
*: "U S B"
+
+ id: LANG_COUNTDOWN_TIMER_SET
+ desc: countdown_timer plugin - header shown on the setup screen where the user enters the countdown duration
+ user: core
+
+ *: "SET TIMER"
+
+
+ *: "SET TIMER"
+
+
+ *: "Set timer"
+
+
+
+ id: LANG_COUNTDOWN_TIMER_RUNNING
+ desc: countdown_timer plugin - status label shown while the countdown is active
+ user: core
+
+ *: "RUNNING"
+
+
+ *: "RUNNING"
+
+
+ *: "Running"
+
+
+
+ id: LANG_COUNTDOWN_TIMER_PAUSED
+ desc: countdown_timer plugin - status label shown while the countdown is paused
+ user: core
+
+ *: "PAUSED"
+
+
+ *: "PAUSED"
+
+
+ *: "Paused"
+
+
+
+ id: LANG_COUNTDOWN_TIMER_OVERTIME
+ desc: countdown_timer plugin - status label shown when the countdown has passed zero and is counting up
+ user: core
+
+ *: "OVERTIME"
+
+
+ *: "OVERTIME"
+
+
+ *: "Overtime"
+
+
+
+ id: LANG_COUNTDOWN_TIMER_FINISHED
+ desc: countdown_timer plugin - status label shown at the moment the countdown expires
+ user: core
+
+ *: "FINISHED"
+
+
+ *: "FINISHED"
+
+
+ *: "Finished"
+
+
diff --git a/apps/lang/english.lang b/apps/lang/english.lang
index 685dffb133..45ed8938fc 100644
--- a/apps/lang/english.lang
+++ b/apps/lang/english.lang
@@ -17099,3 +17099,73 @@
*: "Swap Left & Right"
+
+ id: LANG_COUNTDOWN_TIMER_SET
+ desc: countdown_timer plugin - header shown on the setup screen where the user enters the countdown duration
+ user: core
+
+ *: "SET TIMER"
+
+
+ *: "SET TIMER"
+
+
+ *: "Set timer"
+
+
+
+ id: LANG_COUNTDOWN_TIMER_RUNNING
+ desc: countdown_timer plugin - status label shown while the countdown is active
+ user: core
+
+ *: "RUNNING"
+
+
+ *: "RUNNING"
+
+
+ *: "Running"
+
+
+
+ id: LANG_COUNTDOWN_TIMER_PAUSED
+ desc: countdown_timer plugin - status label shown while the countdown is paused
+ user: core
+
+ *: "PAUSED"
+
+
+ *: "PAUSED"
+
+
+ *: "Paused"
+
+
+
+ id: LANG_COUNTDOWN_TIMER_OVERTIME
+ desc: countdown_timer plugin - status label shown when the countdown has passed zero and is counting up
+ user: core
+
+ *: "OVERTIME"
+
+
+ *: "OVERTIME"
+
+
+ *: "Overtime"
+
+
+
+ id: LANG_COUNTDOWN_TIMER_FINISHED
+ desc: countdown_timer plugin - status label shown at the moment the countdown expires
+ user: core
+
+ *: "FINISHED"
+
+
+ *: "FINISHED"
+
+
+ *: "Finished"
+
+
diff --git a/apps/plugins/CATEGORIES b/apps/plugins/CATEGORIES
index c9b1781a15..bf646a5bf9 100644
--- a/apps/plugins/CATEGORIES
+++ b/apps/plugins/CATEGORIES
@@ -21,6 +21,7 @@ chopper,games
clix,games
clock,apps
codebuster,games
+countdown_timer,apps
credits,viewers
cube,demos
cue_playlist,viewers
diff --git a/apps/plugins/SOURCES b/apps/plugins/SOURCES
index 3a57e3f9e5..797601e4dd 100644
--- a/apps/plugins/SOURCES
+++ b/apps/plugins/SOURCES
@@ -7,6 +7,7 @@ db_folder_select.c
tagcache/tagcache.c
#endif
chessclock.c
+countdown_timer.c
credits.c
cube.c
cue_playlist.c
diff --git a/apps/plugins/countdown_timer.c b/apps/plugins/countdown_timer.c
new file mode 100644
index 0000000000..b520047bf3
--- /dev/null
+++ b/apps/plugins/countdown_timer.c
@@ -0,0 +1,242 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2026 Teun van Dalen
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "plugin.h"
+#include "lib/pluginlib_actions.h"
+#include "lib/pluginlib_exit.h"
+
+const struct button_mapping *plugin_contexts[] = { pla_main_ctx };
+
+#define MAX_MINUTES 99
+#define MAX_SECONDS 59
+
+typedef enum {
+ STATE_SETUP,
+ STATE_RUNNING,
+ STATE_PAUSED,
+ STATE_FINISHED,
+} timer_state_t;
+
+typedef struct {
+ int set_minutes;
+ int set_seconds;
+ int current_field;
+ long remaining_ticks;
+ long last_tick;
+ timer_state_t state;
+} timer_ctx_t;
+
+static inline int get_button(void)
+{
+ return pluginlib_getaction(HZ / 10, plugin_contexts,
+ ARRAYLEN(plugin_contexts));
+}
+
+static void draw(const timer_ctx_t *ctx)
+{
+ char time_str[12];
+ const char *status_str;
+ int disp_min, disp_sec;
+ int w, h, x, y;
+
+ rb->lcd_clear_display();
+
+ if (ctx->state == STATE_SETUP) {
+ disp_min = ctx->set_minutes;
+ disp_sec = ctx->set_seconds;
+ if (ctx->current_field == 0)
+ rb->snprintf(time_str, sizeof(time_str), "[%02d]:%02d",
+ disp_min, disp_sec);
+ else
+ rb->snprintf(time_str, sizeof(time_str), "%02d:[%02d]",
+ disp_min, disp_sec);
+ status_str = rb->str(LANG_COUNTDOWN_TIMER_SET);
+ } else if (ctx->state == STATE_FINISHED) {
+ rb->snprintf(time_str, sizeof(time_str), "00:00");
+ status_str = rb->str(LANG_COUNTDOWN_TIMER_FINISHED);
+ } else {
+ if (ctx->remaining_ticks >= 0) {
+ int remaining_secs = (ctx->remaining_ticks + HZ - 1) / HZ;
+ disp_min = remaining_secs / 60;
+ disp_sec = remaining_secs % 60;
+ rb->snprintf(time_str, sizeof(time_str), "%02d:%02d",
+ disp_min, disp_sec);
+ } else {
+ int over_secs = ((-ctx->remaining_ticks) + HZ - 1) / HZ;
+ disp_min = over_secs / 60;
+ disp_sec = over_secs % 60;
+ rb->snprintf(time_str, sizeof(time_str), "-%02d:%02d",
+ disp_min, disp_sec);
+ }
+
+ if (ctx->state == STATE_RUNNING && ctx->remaining_ticks < 0)
+ status_str = rb->str(LANG_COUNTDOWN_TIMER_OVERTIME);
+ else if (ctx->state == STATE_RUNNING)
+ status_str = rb->str(LANG_COUNTDOWN_TIMER_RUNNING);
+ else
+ status_str = rb->str(LANG_COUNTDOWN_TIMER_PAUSED);
+ }
+
+ /* Draw status string above center */
+ rb->lcd_getstringsize(status_str, &w, &h);
+ x = (LCD_WIDTH - w) / 2;
+ y = (LCD_HEIGHT / 2) - h - 2;
+ rb->lcd_putsxy(x, y, status_str);
+
+ /* Draw time string at center */
+ rb->lcd_getstringsize(time_str, &w, &h);
+ x = (LCD_WIDTH - w) / 2;
+ y = LCD_HEIGHT / 2;
+ rb->lcd_putsxy(x, y, time_str);
+
+ rb->lcd_update();
+}
+
+enum plugin_status plugin_start(const void *parameter)
+{
+ timer_ctx_t ctx = {
+ .set_minutes = 10,
+ .set_seconds = 0,
+ .current_field = 0,
+ .remaining_ticks = 60 * HZ,
+ .last_tick = 0,
+ .state = STATE_SETUP,
+ };
+ bool overtime_alerted = false;
+ int button;
+
+ (void)parameter;
+
+ while (true) {
+ if (ctx.state == STATE_RUNNING) {
+ long now = *rb->current_tick;
+ ctx.remaining_ticks -= now - ctx.last_tick;
+ ctx.last_tick = now;
+
+ if (ctx.remaining_ticks < 0 && !overtime_alerted) {
+ overtime_alerted = true;
+ ctx.state = STATE_FINISHED;
+ draw(&ctx);
+ rb->audio_pause();
+#ifdef HAVE_BACKLIGHT
+ rb->backlight_on();
+#endif
+ rb->beep_play(1000, 200, 1000);
+ rb->sleep(HZ / 4);
+ rb->beep_play(1000, 200, 1000);
+ rb->sleep(HZ / 4);
+ rb->beep_play(1000, 400, 1000);
+ rb->sleep(HZ + HZ / 2);
+ rb->audio_resume();
+ ctx.state = STATE_RUNNING;
+ /* Reset last_tick so the beep/sleep time is not counted
+ * against remaining_ticks on the next iteration. */
+ ctx.last_tick = *rb->current_tick;
+ }
+ }
+
+ draw(&ctx);
+ button = get_button();
+
+ switch (ctx.state) {
+ case STATE_SETUP: {
+ bool time_changed = false;
+ switch (button) {
+#ifdef HAVE_SCROLLWHEEL
+ case PLA_SCROLL_FWD:
+ case PLA_SCROLL_FWD_REPEAT:
+#endif
+ case PLA_UP:
+ case PLA_UP_REPEAT:
+ if (ctx.current_field == 0)
+ ctx.set_minutes = (ctx.set_minutes + 1) % (MAX_MINUTES + 1);
+ else
+ ctx.set_seconds = (ctx.set_seconds + 1) % (MAX_SECONDS + 1);
+ time_changed = true;
+ break;
+#ifdef HAVE_SCROLLWHEEL
+ case PLA_SCROLL_BACK:
+ case PLA_SCROLL_BACK_REPEAT:
+#endif
+ case PLA_DOWN:
+ case PLA_DOWN_REPEAT:
+ if (ctx.current_field == 0)
+ ctx.set_minutes = (ctx.set_minutes + MAX_MINUTES) % (MAX_MINUTES + 1);
+ else
+ ctx.set_seconds = (ctx.set_seconds + MAX_SECONDS) % (MAX_SECONDS + 1);
+ time_changed = true;
+ break;
+ case PLA_LEFT:
+ case PLA_LEFT_REPEAT:
+ case PLA_RIGHT:
+ case PLA_RIGHT_REPEAT:
+ ctx.current_field = (ctx.current_field + 1) % 2;
+ break;
+ case PLA_SELECT:
+ if (ctx.set_minutes > 0 || ctx.set_seconds > 0) {
+ ctx.remaining_ticks = (ctx.set_minutes * 60 + ctx.set_seconds) * HZ;
+ ctx.last_tick = *rb->current_tick;
+ ctx.state = STATE_RUNNING;
+ }
+ break;
+ default:
+ exit_on_usb(button);
+ break;
+ }
+ if (time_changed)
+ ctx.remaining_ticks = (ctx.set_minutes * 60 + ctx.set_seconds) * HZ;
+ break;
+ }
+
+ case STATE_RUNNING:
+ switch (button) {
+ case PLA_SELECT:
+ ctx.state = STATE_PAUSED;
+ break;
+ default:
+ exit_on_usb(button);
+ break;
+ }
+ break;
+
+ case STATE_FINISHED:
+ exit_on_usb(button);
+ break;
+
+ case STATE_PAUSED:
+ switch (button) {
+ case PLA_SELECT:
+ ctx.last_tick = *rb->current_tick;
+ ctx.state = STATE_RUNNING;
+ break;
+ case PLA_UP:
+ case PLA_UP_REPEAT:
+ case PLA_CANCEL:
+ case PLA_EXIT:
+ return PLUGIN_OK;
+ default:
+ exit_on_usb(button);
+ break;
+ }
+ break;
+ }
+ }
+}
diff --git a/docs/CREDITS b/docs/CREDITS
index 06045db966..f1affc6eb8 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -760,6 +760,7 @@ Yegor Chernyshov
Javier Gutiérrez Gertrúdix
Sergey Puskov
Eivind Ødegård
+Teun van Dalen
The libmad team
The wavpack team
diff --git a/manual/plugins/countdown_timer.tex b/manual/plugins/countdown_timer.tex
new file mode 100644
index 0000000000..c022203a92
--- /dev/null
+++ b/manual/plugins/countdown_timer.tex
@@ -0,0 +1,51 @@
+% $Id$ %
+\subsection{Countdown_timer}
+
+A countdown timer. Set the desired duration, start the countdown, and the
+\dap{} will alert you with a beep sequence when time is up. The timer
+defaults to 10 minutes on launch.
+
+\subsubsection{Setting the timer}
+
+When the plugin starts, the display shows the time to count down from with
+the active field highlighted in brackets (e.g.\ \texttt{[10]:00}).
+
+\begin{btnmap}
+ \opt{scrollwheel}{\PluginScrollFwd{} / \PluginScrollBack{} or }
+ \PluginUp{} / \PluginDown
+ \opt{HAVEREMOTEKEYMAP}{& \PluginRCUp{} / \PluginRCDown}
+ & Increase / decrease the selected field \\
+
+ \PluginLeft{} / \PluginRight
+ \opt{HAVEREMOTEKEYMAP}{& \PluginRCLeft{} / \PluginRCRight}
+ & Switch between the minutes and seconds fields \\
+
+ \PluginSelect
+ \opt{HAVEREMOTEKEYMAP}{& \PluginRCSelect}
+ & Start the countdown \\
+\end{btnmap}
+
+Minutes can be set from 0 to 99 and seconds from 0 to 59. The timer cannot
+be started if both fields are zero. Values wrap around when incremented or
+decremented past their limits.
+
+\subsubsection{Running the timer}
+
+Once started, the remaining time counts down in \texttt{MM:SS} format.
+
+\begin{btnmap}
+ \PluginSelect
+ \opt{HAVEREMOTEKEYMAP}{& \PluginRCSelect}
+ & Pause / resume the timer \\
+
+ \nopt{IPOD_4G_PAD,IPOD_3G_PAD}{\PluginCancel}
+ \opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonMenu}
+ \opt{HAVEREMOTEKEYMAP}{& \PluginRCCancel}
+ & Quit (only available while paused) \\
+\end{btnmap}
+
+When the countdown reaches zero the \dap{} pauses playback, turns on the
+backlight, and plays three beeps. After the alert the timer continues
+running into overtime, displaying the elapsed overtime as
+\texttt{-MM:SS}. Playback resumes automatically after the beep sequence.
+The timer can be quit by pausing it and pressing the quit button.
diff --git a/manual/plugins/main.tex b/manual/plugins/main.tex
index d6601b8a5b..8ca4b86e6b 100644
--- a/manual/plugins/main.tex
+++ b/manual/plugins/main.tex
@@ -297,3 +297,5 @@ option from the \setting{Context Menu} (see \reference{ref:Contextmenu}).}
\input{plugins/stopwatch.tex}
\input{plugins/text_editor.tex}
+
+\input{plugins/countdown_timer.tex}