diff --git a/timetagger/app/dialogs.py b/timetagger/app/dialogs.py
index 39a87c10..a632ca29 100644
--- a/timetagger/app/dialogs.py
+++ b/timetagger/app/dialogs.py
@@ -3798,6 +3798,12 @@ def open(self, callback=None):
                     <option value='1'>Monday</option>
                     <option value='6'>Saturday</option>
                 </select>
+                <div>Workdays:</div>
+                <select>
+                    <option value='2'>Monday - Friday</option>
+                    <option value='1'>Monday - Saturday</option>
+                    <option value='0'>Monday - Sunday</option>
+                </select>
                 <div>Show time as:</div>
                 <select>
                     <option value='auto'>Auto</option>
@@ -3900,27 +3906,33 @@ def open(self, callback=None):
         self._first_day_of_week.value = first_day_of_week
         self._first_day_of_week.onchange = self._on_first_day_of_week_change
 
+        # Workdays
+        workdays = window.simplesettings.get("workdays")
+        self._workdays = self._repr_form.children[3]
+        self._workdays.value = workdays
+        self._workdays.onchange = self._on_workdays_change
+
         # Time representation
         time_repr = window.simplesettings.get("time_repr")
-        self._time_repr = self._repr_form.children[3]
+        self._time_repr = self._repr_form.children[5]
         self._time_repr.value = time_repr
         self._time_repr.onchange = self._on_time_repr_change
 
         # Duration representation
         duration_repr = window.simplesettings.get("duration_repr")
-        self._duration_repr = self._repr_form.children[5]
+        self._duration_repr = self._repr_form.children[7]
         self._duration_repr.value = duration_repr
         self._duration_repr.onchange = self._on_duration_repr_change
 
         # Today snap time/offset
         today_snap_offset = window.simplesettings.get("today_snap_offset")
-        self._today_snap_offset = self._repr_form.children[7]
+        self._today_snap_offset = self._repr_form.children[9]
         self._today_snap_offset.value = today_snap_offset
         self._today_snap_offset.onchange = self._on_today_snap_offset_change
 
         # Today number of hours
         today_end_offset = window.simplesettings.get("today_end_offset")
-        self._today_end_offset = self._repr_form.children[9]
+        self._today_end_offset = self._repr_form.children[11]
         self._today_end_offset.value = today_end_offset
         self._today_end_offset.onchange = self._on_today_end_offset_change
 
@@ -3961,6 +3973,10 @@ def _on_first_day_of_week_change(self):
         first_day_of_week = int(self._first_day_of_week.value)
         window.simplesettings.set("first_day_of_week", first_day_of_week)
 
+    def _on_workdays_change(self):
+        workdays = int(self._workdays.value)
+        window.simplesettings.set("workdays", workdays)
+
     def _on_time_repr_change(self):
         time_repr = self._time_repr.value
         window.simplesettings.set("time_repr", time_repr)
diff --git a/timetagger/app/dt.py b/timetagger/app/dt.py
index 1303adca..02192e7e 100644
--- a/timetagger/app/dt.py
+++ b/timetagger/app/dt.py
@@ -400,6 +400,50 @@ def get_weeknumber(t):
     return res  # noqa
 
 
+def get_remaining_hours_of_day(t):
+    d = Date(t * 1000)
+    return 24 - d.getHours() - d.getMinutes() / 60 - d.getSeconds() / 3600
+
+
+def get_elapsed_hours_of_day(t):
+    d = Date(t * 1000)
+    return d.getHours() + d.getMinutes() / 60 + d.getSeconds() / 3600
+
+
+def get_free_hours_in_range(t1, t2, free_days):
+    free_hours = 0
+    if free_days >= 1:
+        d1 = Date(t1 * 1000)
+        d2 = Date(t2 * 1000)
+        hours_in_range = (t2 - t1) / 3600
+
+        if hours_in_range > 24:  # scale > "1D"
+            while d1 < d2:
+                if d1.getDay() == 0:  # sunday
+                    free_hours += 24
+                elif d1.getDay() == 6 and free_days == 2:  # saturday
+                    free_hours += 24
+                d1.setDate(d1.getDate() + 1)  # next day
+        else:  # scale <= "1D"
+            # starts on sunday
+            if d1.getDay() == 0 and d2.getDay() != 0:
+                free_hours = get_remaining_hours_of_day(t1)
+            # only sunday
+            elif d1.getDay() == 0 and d2.getDay() == 0:
+                free_hours = hours_in_range
+            # ends on sunday
+            elif d1.getDay() != 0 and d2.getDay() == 0 and free_days != 2:
+                free_hours = get_elapsed_hours_of_day(t2)
+            # starts on saturday
+            elif d1.getDay() == 6 and free_days == 2:
+                free_hours = hours_in_range
+            # ends on saturday
+            elif d1.getDay() != 6 and d2.getDay() == 6 and free_days == 2:
+                free_hours = get_elapsed_hours_of_day(t2)
+
+    return free_hours
+
+
 if __name__ == "__main__":
     import pscript
 
diff --git a/timetagger/app/front.py b/timetagger/app/front.py
index fa6b5ff4..b6f8341e 100644
--- a/timetagger/app/front.py
+++ b/timetagger/app/front.py
@@ -2539,6 +2539,16 @@ def _draw_stats(self, ctx, t1, t2, x1, y1, x2, y2, stat_period, hover):
         fullwidth = x2 - x1  # * (sumcount_full / (t2 - t1)) # ** 0.5
         fullheight = (y2 - y1) * (sumcount_full / (t2 - t1))  # ** 0.5
 
+        # Darken the colors for free days.
+        if stat_period == "1D":
+            workdays_setting = window.simplesettings.get("workdays")
+            is_free_day = (text == "Sat" and workdays_setting == 2) or (
+                text == "Sun" and workdays_setting >= 1
+            )
+            if is_free_day:
+                ctx.fillStyle = COLORS.button_text_disabled
+                ctx.fillRect(x1, y1, fullwidth, y2 - y1)
+
         # Show amount of time spend on each tag
         x = x1
         for i in range(len(stats_list)):
@@ -2562,15 +2572,16 @@ def _draw_stats(self, ctx, t1, t2, x1, y1, x2, y2, stat_period, hover):
         # Draw big text in stronger color if it is the timerange containing today
 
         # Draw duration at the left
-        ctx.fillStyle = COLORS.prim1_clr if hover else COLORS.prim2_clr
-        fontsizeleft = bigfontsize * (0.7 if selected_tags else 0.9)
-        ctx.font = f"{fontsizeleft}px {FONT.default}"
-        ctx.textBaseline = "bottom"
-        ctx.textAlign = "left"
-        duration_text = dt.duration_string(sumcount_selected, False)
-        if selected_tags:
-            duration_text += " / " + dt.duration_string(sumcount_nominal, False)
-        ctx.fillText(duration_text, x1 + 10, y2 - ymargin)
+        if not stat_period == "1D" or sumcount_nominal > 0 or not is_free_day:
+            ctx.fillStyle = COLORS.prim1_clr if hover else COLORS.prim2_clr
+            fontsizeleft = bigfontsize * (0.7 if selected_tags else 0.9)
+            ctx.font = f"{fontsizeleft}px {FONT.default}"
+            ctx.textBaseline = "bottom"
+            ctx.textAlign = "left"
+            duration_text = dt.duration_string(sumcount_selected, False)
+            if selected_tags:
+                duration_text += " / " + dt.duration_string(sumcount_nominal, False)
+            ctx.fillText(duration_text, x1 + 10, y2 - ymargin)
 
         # Draw time-range indication at the right
         isnow = t1 < self._canvas.now() < t2
@@ -3417,14 +3428,28 @@ def _draw_container(self, ctx, total_time, x1, y1, x2, y2):
             ctx.fillText(duration, x_ref_duration, ty)
             # -- Row for target
             tx, ty = x_ref_labels, ymid - 2 + npixels * 0.85
+
             # Select the target that best matches the current time range
             best_target = None
-            m = {"day": 24, "week": 168, "month": 720, "year": 8760}
-            for period, divisor in m.items():
+            free_days_per_week = window.simplesettings.get("workdays")
+            free_hours_in_range = dt.get_free_hours_in_range(t1, t2, free_days_per_week)
+            work_hours_in_range = self._hours_in_range - free_hours_in_range
+            for period in ["day", "week", "month", "year"]:
                 target_hours = self._current_targets.get(period, 0)
                 if target_hours <= 0:
                     continue
-                factor = self._hours_in_range / divisor
+
+                # hours in period -> "day": 24, "week": 168, "month": 720, "year": 8760
+                if period == "day":
+                    work_hours_in_period = 24
+                elif period == "week":
+                    work_hours_in_period = 168 - free_days_per_week * 24
+                elif period == "month":  # ~4.33 weeks in a month
+                    work_hours_in_period = 720 - free_days_per_week * 24 * 4.33
+                elif period == "year":
+                    work_hours_in_period = 8760 - free_days_per_week * 24 * 52
+
+                factor = work_hours_in_range / work_hours_in_period
                 if factor > 0.93 or not best_target:
                     best_target = {
                         "period": period,
@@ -3440,13 +3465,16 @@ def _draw_container(self, ctx, total_time, x1, y1, x2, y2):
             if best_target:
                 done_this_period = total_time
                 target_this_period = 3600 * best_target.hours * best_target.factor
-                perc = 100 * done_this_period / target_this_period
                 prefix = "" if 0.93 < best_target.factor < 1.034 else "~ "
-                ctx.fillText(
-                    f"{best_target.period} target at {prefix}{perc:0.0f}%",
-                    tx,
-                    ty,
-                )
+                if target_this_period > 0:
+                    perc = 100 * done_this_period / target_this_period
+                    ctx.fillText(
+                        f"{best_target.period} target at {prefix}{perc:0.0f}%",
+                        tx,
+                        ty,
+                    )
+                else:
+                    ctx.fillText("No target", tx, ty)
                 left = target_this_period - done_this_period
                 left_s = dt.duration_string(abs(left), False)
                 left_prefix = "left" if left >= 0 else "over"
diff --git a/timetagger/app/utils.py b/timetagger/app/utils.py
index 9e7bd2dd..69723b85 100644
--- a/timetagger/app/utils.py
+++ b/timetagger/app/utils.py
@@ -621,6 +621,7 @@ def __init__(self):
         }
         self._synced_keys = {
             "first_day_of_week": 1,
+            "workdays": 0,
             "time_repr": "auto",
             "duration_repr": "hms",
             "today_snap_offset": "",