diff --git a/apps/web/src/components/ui/dialog.tsx b/apps/web/src/components/ui/dialog.tsx
new file mode 100644
index 0000000..1f6f415
--- /dev/null
+++ b/apps/web/src/components/ui/dialog.tsx
@@ -0,0 +1,75 @@
+import { X } from 'lucide-react';
+import type { ComponentProps } from 'react';
+import { Dialog as DialogPrimitive } from 'radix-ui';
+
+import { cn } from '@/lib/utils';
+
+const Dialog = DialogPrimitive.Root;
+const DialogTrigger = DialogPrimitive.Trigger;
+const DialogClose = DialogPrimitive.Close;
+
+function DialogContent({
+  children,
+  className,
+  ...props
+}: ComponentProps<typeof DialogPrimitive.Content>) {
+  return (
+    <DialogPrimitive.Portal>
+      <DialogPrimitive.Overlay className="fixed inset-0 z-50 bg-black/70 backdrop-blur-xs" />
+      <DialogPrimitive.Content
+        className={cn(
+          'fixed right-0 bottom-0 left-0 z-50 max-h-[90vh] overflow-y-auto rounded-t-2xl border bg-background p-5 shadow-2xl',
+          'focus:outline-none',
+          'sm:top-1/2 sm:right-auto sm:bottom-auto sm:left-1/2 sm:w-[min(34rem,calc(100vw-2rem))] sm:-translate-x-1/2 sm:-translate-y-1/2 sm:rounded-xl sm:p-6',
+          className,
+        )}
+        {...props}
+      >
+        {children}
+        <DialogPrimitive.Close
+          aria-label="Close"
+          className={cn(
+            'absolute top-4 right-4 inline-flex size-9 items-center justify-center rounded-md',
+            'text-muted-foreground transition-colors hover:bg-accent hover:text-foreground',
+            'focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring',
+          )}
+        >
+          <X aria-hidden="true" className="size-5" />
+        </DialogPrimitive.Close>
+      </DialogPrimitive.Content>
+    </DialogPrimitive.Portal>
+  );
+}
+
+function DialogTitle({
+  className,
+  ...props
+}: ComponentProps<typeof DialogPrimitive.Title>) {
+  return (
+    <DialogPrimitive.Title
+      className={cn('text-lg font-semibold sm:text-xl', className)}
+      {...props}
+    />
+  );
+}
+
+function DialogDescription({
+  className,
+  ...props
+}: ComponentProps<typeof DialogPrimitive.Description>) {
+  return (
+    <DialogPrimitive.Description
+      className={cn('text-sm text-muted-foreground', className)}
+      {...props}
+    />
+  );
+}
+
+export {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogDescription,
+  DialogTitle,
+  DialogTrigger,
+};
diff --git a/apps/web/src/components/ui/switch.tsx b/apps/web/src/components/ui/switch.tsx
new file mode 100644
index 0000000..ce8a481
--- /dev/null
+++ b/apps/web/src/components/ui/switch.tsx
@@ -0,0 +1,29 @@
+import type { ComponentProps } from 'react';
+import { Switch as SwitchPrimitive } from 'radix-ui';
+
+import { cn } from '@/lib/utils';
+
+export function Switch({
+  className,
+  ...props
+}: ComponentProps<typeof SwitchPrimitive.Root>) {
+  return (
+    <SwitchPrimitive.Root
+      className={cn(
+        'inline-flex h-5 w-9 shrink-0 cursor-pointer items-center rounded-full border border-transparent p-0.5',
+        'bg-input transition-colors data-[state=checked]:bg-primary',
+        'focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring',
+        'disabled:cursor-not-allowed disabled:opacity-50',
+        className,
+      )}
+      {...props}
+    >
+      <SwitchPrimitive.Thumb
+        className={cn(
+          'block size-4 rounded-full bg-foreground shadow-sm transition-transform',
+          'data-[state=checked]:translate-x-4 data-[state=unchecked]:translate-x-0',
+        )}
+      />
+    </SwitchPrimitive.Root>
+  );
+}
diff --git a/apps/web/src/features/routines/create/editor/routine-editor.test.tsx b/apps/web/src/features/routines/create/editor/routine-editor.test.tsx
index bea9163..969f261 100644
--- a/apps/web/src/features/routines/create/editor/routine-editor.test.tsx
+++ b/apps/web/src/features/routines/create/editor/routine-editor.test.tsx
@@ -39,7 +39,7 @@ describe('routine editor', () => {
       screen.queryByRole('button', { name: 'Preview' }),
     ).not.toBeInTheDocument();
     expect(screen.getByRole('button', { name: 'Add Exercise' })).toBeVisible();
-    expect(screen.getByRole('button', { name: 'Add schedule' })).toBeDisabled();
+    expect(screen.getByRole('button', { name: 'Add schedule' })).toBeEnabled();
     expect(
       screen.getByRole('link', { name: 'Back to routines' }),
     ).toHaveAttribute('href', '/routines');
diff --git a/apps/web/src/features/routines/create/editor/routine-schedule-field.test.tsx b/apps/web/src/features/routines/create/editor/routine-schedule-field.test.tsx
new file mode 100644
index 0000000..f30e08d
--- /dev/null
+++ b/apps/web/src/features/routines/create/editor/routine-schedule-field.test.tsx
@@ -0,0 +1,25 @@
+import { cleanup, render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { afterEach, expect, it } from 'vitest';
+
+import { RoutineScheduleField } from './routine-schedule-field';
+
+afterEach(cleanup);
+
+it('opens a weekly schedule dialog and reveals time controls for selected days', async () => {
+  const user = userEvent.setup();
+  render(<RoutineScheduleField />);
+
+  await user.click(screen.getByRole('button', { name: 'Add schedule' }));
+
+  expect(
+    screen.getByRole('heading', { name: 'Schedule Routine' }),
+  ).toBeVisible();
+  expect(screen.getAllByRole('switch')).toHaveLength(7);
+  expect(screen.queryByLabelText('Monday time')).toBeNull();
+
+  await user.click(screen.getByRole('switch', { name: 'Schedule Monday' }));
+
+  expect(screen.getByLabelText('Monday time')).toHaveValue('18:00');
+  expect(screen.getByRole('button', { name: 'Save Schedule' })).toBeDisabled();
+});
diff --git a/apps/web/src/features/routines/create/editor/routine-schedule-field.tsx b/apps/web/src/features/routines/create/editor/routine-schedule-field.tsx
index 3546bb9..0a85c60 100644
--- a/apps/web/src/features/routines/create/editor/routine-schedule-field.tsx
+++ b/apps/web/src/features/routines/create/editor/routine-schedule-field.tsx
@@ -1,8 +1,29 @@
-/** Displays routine schedule selections and the entry point for adding one. */
+/** Displays routine schedules and opens the responsive weekly schedule editor. */
 import { Plus } from 'lucide-react';
+import { useState } from 'react';
 
 import { Button } from '@/components/ui/button';
+import {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogDescription,
+  DialogTitle,
+  DialogTrigger,
+} from '@/components/ui/dialog';
 import { Label } from '@/components/ui/label';
+import { Switch } from '@/components/ui/switch';
+import { cn } from '@/lib/utils';
+
+const WEEKDAYS = [
+  { label: 'Sunday', shortLabel: 'Sun' },
+  { label: 'Monday', shortLabel: 'Mon' },
+  { label: 'Tuesday', shortLabel: 'Tue' },
+  { label: 'Wednesday', shortLabel: 'Wed' },
+  { label: 'Thursday', shortLabel: 'Thu' },
+  { label: 'Friday', shortLabel: 'Fri' },
+  { label: 'Saturday', shortLabel: 'Sat' },
+] as const;
 
 export function RoutineScheduleField() {
   return (
@@ -10,17 +31,103 @@ export function RoutineScheduleField() {
       <Label isOptional>Schedule</Label>
 
       <div className="mt-2 flex min-h-14 items-center">
+        <ScheduleDialog />
+      </div>
+    </div>
+  );
+}
+
+function ScheduleDialog() {
+  const [selectedDays, setSelectedDays] = useState<Set<string>>(new Set());
+
+  function setDaySelected(day: string, isSelected: boolean) {
+    setSelectedDays((currentDays) => {
+      const nextDays = new Set(currentDays);
+
+      if (isSelected) {
+        nextDays.add(day);
+      } else {
+        nextDays.delete(day);
+      }
+
+      return nextDays;
+    });
+  }
+
+  return (
+    <Dialog>
+      <DialogTrigger asChild>
         <Button
           aria-label="Add schedule"
-          className="size-14 rounded-lg border-input bg-surface-elevated disabled:opacity-100"
-          disabled
+          className="size-14 rounded-lg border-input bg-surface-elevated"
           size="icon"
           type="button"
           variant="outline"
         >
           <Plus aria-hidden="true" className="size-5" />
         </Button>
-      </div>
-    </div>
+      </DialogTrigger>
+
+      <DialogContent>
+        <DialogTitle>Schedule Routine</DialogTitle>
+        <DialogDescription className="mt-1">
+          Choose the days and time for this routine.
+        </DialogDescription>
+
+        <div className="mt-6 divide-y divide-border/40 overflow-hidden rounded-lg border border-border/60">
+          {WEEKDAYS.map((day) => {
+            const isSelected = selectedDays.has(day.label);
+
+            return (
+              <div
+                className={cn(
+                  'grid min-h-14 grid-cols-[auto_1fr_7.5rem] items-center gap-3 px-3 py-2',
+                  'transition-colors',
+                  isSelected && 'bg-surface/70',
+                )}
+                key={day.label}
+              >
+                <Switch
+                  aria-label={`Schedule ${day.label}`}
+                  checked={isSelected}
+                  onCheckedChange={(checked) =>
+                    setDaySelected(day.label, checked)
+                  }
+                />
+                <span className="text-sm sm:text-base">{day.shortLabel}</span>
+
+                {isSelected ? (
+                  <input
+                    aria-label={`${day.label} time`}
+                    className={cn(
+                      'h-9 w-full rounded-md border px-2 text-sm',
+                      'border-input bg-surface-elevated text-foreground',
+                      'outline-none focus-visible:border-ring focus-visible:ring-2 focus-visible:ring-ring/40',
+                    )}
+                    defaultValue="18:00"
+                    type="time"
+                  />
+                ) : (
+                  <span className="pr-2 text-right text-muted-foreground">
+                    —
+                  </span>
+                )}
+              </div>
+            );
+          })}
+        </div>
+
+        <div className="mt-6 grid grid-cols-2 gap-3">
+          <DialogClose asChild>
+            <Button type="button" variant="outline">
+              Cancel
+            </Button>
+          </DialogClose>
+          <Button disabled type="button">
+            Save Schedule
+          </Button>
+        </div>
+      </DialogContent>
+    </Dialog>
   );
 }