diff --git a/src/app/(protected)/calendar/_components/event-form.tsx b/src/app/(protected)/calendar/_components/event-form.tsx
new file mode 100644
index 00000000..92a21854
--- /dev/null
+++ b/src/app/(protected)/calendar/_components/event-form.tsx
@@ -0,0 +1,279 @@
+import { useEffect } from "react";
+import { Controller, useForm, useWatch } from "react-hook-form";
+import { zodResolver } from "@hookform/resolvers/zod";
+import { useNavigate, useParams, useSearchParams } from "react-router-dom";
+import {
+  Alert,
+  Box,
+  Button,
+  Checkbox,
+  CircularProgress,
+  FormControl,
+  FormControlLabel,
+  InputLabel,
+  MenuItem,
+  Paper,
+  Select,
+  Stack,
+  TextField,
+  Typography,
+} from "@mui/material";
+import {
+  CALENDAR_REMINDER_OPTIONS,
+  CALENDAR_TIME_OPTIONS,
+} from "@/components/common/calendar/calendar-utils";
+import {
+  calendarEventSchema,
+  type CalendarEventFormValues,
+} from "@/domain/calendar/schemas/calendar-event-schema";
+import { useCalendarEventDetail } from "@/domain/calendar/use-cases/use-calendar-event-detail";
+import { useCreateCalendarEvent } from "@/domain/calendar/use-cases/use-create-calendar-event";
+import { useUpdateCalendarEvent } from "@/domain/calendar/use-cases/use-update-calendar-event";
+import { toDateInputValue } from "@/lib/time-utils";
+
+const COLORS = ["primary", "success", "info", "warning", "danger"] as const;
+
+const defaultValues: CalendarEventFormValues = {
+  title: "",
+  description: "",
+  location: "",
+  recordId: null,
+  recordName: "",
+  recordTargetType: "",
+  reminderMinutes: 15,
+  eventColor: "primary",
+  startDate: new Date().toISOString().split("T")[0],
+  startTime: "08:00 AM",
+  endDate: new Date().toISOString().split("T")[0],
+  endTime: "08:30 AM",
+  allDay: false,
+};
+
+export default function EventFormPage() {
+  const { id } = useParams();
+  const [searchParams] = useSearchParams();
+  const navigate = useNavigate();
+  const isEdit = Boolean(id);
+
+  const { data: event, isLoading, error } = useCalendarEventDetail(id);
+  const createEvent = useCreateCalendarEvent();
+  const updateEvent = useUpdateCalendarEvent();
+
+  const {
+    register,
+    handleSubmit,
+    reset,
+    control,
+    formState: { errors },
+  } = useForm<CalendarEventFormValues>({
+    resolver: zodResolver(calendarEventSchema),
+    defaultValues: {
+      ...defaultValues,
+      startDate: searchParams.get("date") ?? defaultValues.startDate,
+      endDate: searchParams.get("date") ?? defaultValues.endDate,
+    },
+  });
+
+  const allDay = useWatch({ control, name: "allDay" });
+
+  useEffect(() => {
+    if (event && isEdit) {
+      reset({
+        title: event.title,
+        description: event.description,
+        location: event.location,
+        recordId: event.recordId,
+        recordName: event.recordName,
+        recordTargetType: event.recordTargetType,
+        reminderMinutes: event.reminderMinutes,
+        eventColor: event.eventColor,
+        startDate: toDateInputValue(event.startDate),
+        startTime: event.startTime || "08:00 AM",
+        endDate: toDateInputValue(event.endDate),
+        endTime: event.endTime || "08:30 AM",
+        allDay: event.allDay,
+      });
+    }
+  }, [event, isEdit, reset]);
+
+  const isSaving = createEvent.isPending || updateEvent.isPending;
+
+  const onSubmit = (values: CalendarEventFormValues) => {
+    if (isEdit && id) {
+      updateEvent.mutate({ id, values });
+      return;
+    }
+    createEvent.mutate(values);
+  };
+
+  if (isEdit && isLoading) {
+    return (
+      <Box className="flex justify-center p-10">
+        <CircularProgress />
+      </Box>
+    );
+  }
+
+  return (
+    <Box className="mx-auto max-w-3xl p-4">
+      <Paper variant="outlined" className="p-6">
+        <Stack spacing={3}>
+          <Typography variant="h5">{isEdit ? "Edit Event" : "Create Event"}</Typography>
+
+          {error && <Alert severity="error">Failed to load event</Alert>}
+
+          <Box component="form" onSubmit={handleSubmit(onSubmit)}>
+            <Stack spacing={3}>
+              <TextField
+                label="Title"
+                required
+                fullWidth
+                inputProps={{ maxLength: 100 }}
+                error={Boolean(errors.title)}
+                helperText={errors.title?.message}
+                {...register("title")}
+              />
+
+              <TextField
+                label="Description"
+                fullWidth
+                multiline
+                rows={3}
+                {...register("description")}
+              />
+
+              <TextField
+                label="Location"
+                fullWidth
+                inputProps={{ maxLength: 150 }}
+                {...register("location")}
+              />
+
+              <Controller
+                name="reminderMinutes"
+                control={control}
+                render={({ field }) => (
+                  <FormControl fullWidth>
+                    <InputLabel>Remind Attendees</InputLabel>
+                    <Select
+                      label="Remind Attendees"
+                      value={field.value}
+                      onChange={(event) => field.onChange(Number(event.target.value))}
+                    >
+                      {CALENDAR_REMINDER_OPTIONS.map((option) => (
+                        <MenuItem key={option.value} value={option.value}>
+                          {option.label}
+                        </MenuItem>
+                      ))}
+                    </Select>
+                  </FormControl>
+                )}
+              />
+
+              <Controller
+                name="eventColor"
+                control={control}
+                render={({ field }) => (
+                  <FormControl fullWidth>
+                    <InputLabel>Calendar Color</InputLabel>
+                    <Select label="Calendar Color" value={field.value} onChange={field.onChange}>
+                      {COLORS.map((color) => (
+                        <MenuItem key={color} value={color}>
+                          {color}
+                        </MenuItem>
+                      ))}
+                    </Select>
+                  </FormControl>
+                )}
+              />
+
+              {!allDay && (
+                <Stack direction={{ xs: "column", sm: "row" }} spacing={2}>
+                  <TextField
+                    label="Start Date"
+                    type="date"
+                    fullWidth
+                    InputLabelProps={{ shrink: true }}
+                    error={Boolean(errors.startDate)}
+                    helperText={errors.startDate?.message}
+                    {...register("startDate")}
+                  />
+                  <Controller
+                    name="startTime"
+                    control={control}
+                    render={({ field }) => (
+                      <FormControl fullWidth>
+                        <InputLabel>Start Time</InputLabel>
+                        <Select label="Start Time" value={field.value} onChange={field.onChange}>
+                          {CALENDAR_TIME_OPTIONS.map((time) => (
+                            <MenuItem key={time} value={time}>
+                              {time}
+                            </MenuItem>
+                          ))}
+                        </Select>
+                      </FormControl>
+                    )}
+                  />
+                </Stack>
+              )}
+
+              {!allDay && (
+                <Stack direction={{ xs: "column", sm: "row" }} spacing={2}>
+                  <TextField
+                    label="End Date"
+                    type="date"
+                    fullWidth
+                    InputLabelProps={{ shrink: true }}
+                    error={Boolean(errors.endDate)}
+                    helperText={errors.endDate?.message}
+                    {...register("endDate")}
+                  />
+                  <Controller
+                    name="endTime"
+                    control={control}
+                    render={({ field }) => (
+                      <FormControl fullWidth>
+                        <InputLabel>End Time</InputLabel>
+                        <Select label="End Time" value={field.value} onChange={field.onChange}>
+                          {CALENDAR_TIME_OPTIONS.map((time) => (
+                            <MenuItem key={time} value={time}>
+                              {time}
+                            </MenuItem>
+                          ))}
+                        </Select>
+                      </FormControl>
+                    )}
+                  />
+                </Stack>
+              )}
+
+              <Controller
+                name="allDay"
+                control={control}
+                render={({ field }) => (
+                  <FormControlLabel
+                    control={<Checkbox checked={field.value} onChange={field.onChange} />}
+                    label="All day event"
+                  />
+                )}
+              />
+
+              <Stack direction="row" spacing={2} justifyContent="flex-end">
+                <Button
+                  variant="outlined"
+                  onClick={() => navigate("/calendar")}
+                  disabled={isSaving}
+                >
+                  Cancel
+                </Button>
+                <Button type="submit" variant="contained" disabled={isSaving}>
+                  {isSaving ? "Saving..." : isEdit ? "Update" : "Create"}
+                </Button>
+              </Stack>
+            </Stack>
+          </Box>
+        </Stack>
+      </Paper>
+    </Box>
+  );
+}
diff --git a/src/app/(protected)/calendar/edit/[id].tsx b/src/app/(protected)/calendar/edit/[id].tsx
new file mode 100644
index 00000000..751eb3ca
--- /dev/null
+++ b/src/app/(protected)/calendar/edit/[id].tsx
@@ -0,0 +1 @@
+export { default } from "../_components/event-form";
diff --git a/src/app/(protected)/calendar/index.tsx b/src/app/(protected)/calendar/index.tsx
new file mode 100644
index 00000000..93da0024
--- /dev/null
+++ b/src/app/(protected)/calendar/index.tsx
@@ -0,0 +1,59 @@
+import { useMemo, useRef, useState } from "react";
+import { useNavigate } from "react-router-dom";
+import type { DatesSetArg, EventClickArg } from "@fullcalendar/core";
+import type { DateClickArg } from "@fullcalendar/interaction";
+import FullCalendar from "@fullcalendar/react";
+import { Box } from "@mui/material";
+import { CalendarActionBar } from "@/components/common/calendar/calendar-action-bar";
+import { EventCalendar } from "@/components/common/calendar/event-calendar";
+import { mapEventToFullCalendar } from "@/components/common/calendar/calendar-utils";
+import { useCalendarEvents } from "@/domain/calendar/use-cases/use-calendar-events";
+
+export default function CalendarPage() {
+  const navigate = useNavigate();
+  const calendarRef = useRef<FullCalendar>(null);
+  const [range, setRange] = useState<{ start: Date; end: Date } | null>(null);
+  const [title, setTitle] = useState("");
+
+  const { data: events = [], isFetching } = useCalendarEvents(
+    range?.start ?? null,
+    range?.end ?? null,
+  );
+
+  const fullCalendarEvents = useMemo(() => events.map(mapEventToFullCalendar), [events]);
+
+  const handleDatesSet = (info: DatesSetArg) => {
+    setRange({ start: info.start, end: info.end });
+    setTitle(info.view.title);
+  };
+
+  const handleEventClick = (clickInfo: EventClickArg) => {
+    navigate(`/calendar/edit/${clickInfo.event.id}`);
+  };
+
+  const handleDateClick = (dateInfo: DateClickArg) => {
+    navigate(`/calendar/new?date=${dateInfo.dateStr}`);
+  };
+
+  const calendarApi = () => calendarRef.current?.getApi();
+
+  return (
+    <Box className="p-4">
+      <CalendarActionBar
+        title={title}
+        onTodayClick={() => calendarApi()?.today()}
+        onPrevClick={() => calendarApi()?.prev()}
+        onNextClick={() => calendarApi()?.next()}
+        onViewChange={(view) => calendarApi()?.changeView(view)}
+      />
+      <EventCalendar
+        ref={calendarRef}
+        events={fullCalendarEvents}
+        loading={isFetching}
+        onDatesSet={handleDatesSet}
+        onEventClick={handleEventClick}
+        onDateClick={handleDateClick}
+      />
+    </Box>
+  );
+}
diff --git a/src/app/(protected)/calendar/new.tsx b/src/app/(protected)/calendar/new.tsx
new file mode 100644
index 00000000..1aef5075
--- /dev/null
+++ b/src/app/(protected)/calendar/new.tsx
@@ -0,0 +1 @@
+export { default } from "./_components/event-form";
diff --git a/src/domain/calendar/api/calendar-api.ts b/src/domain/calendar/api/calendar-api.ts
new file mode 100644
index 00000000..2edf9694
--- /dev/null
+++ b/src/domain/calendar/api/calendar-api.ts
@@ -0,0 +1,70 @@
+import { API_PATHS } from "@/api/api-paths";
+import { apiDelete, apiGet, apiPost } from "@/api/api";
+import { handleApiResponse, handlePaginatedResponse } from "@/api/handle-api-response";
+import {
+  mapCalendarEvent,
+  mapCalendarEvents,
+  mapCalendarEventToBackend,
+} from "@/domain/calendar/mappers/calendar-event-mapper";
+import type {
+  CalendarEvent,
+  CalendarEventsListParams,
+  CalendarEventsListResult,
+} from "@/domain/calendar/types/calendar-event";
+
+export const calendarApi = {
+  getEventsForCalendar: async (start: Date, end: Date): Promise<CalendarEvent[]> => {
+    const data = await apiGet<unknown>(API_PATHS.calendar.getEventsForCalendar, {
+      searchParams: {
+        start: start.toISOString(),
+        end: end.toISOString(),
+      },
+    });
+    return mapCalendarEvents(handleApiResponse<unknown[]>(data));
+  },
+
+  getList: async (params: CalendarEventsListParams = {}): Promise<CalendarEventsListResult> => {
+    const data = await apiGet<unknown>(API_PATHS.calendar.getEventList, {
+      searchParams: {
+        search: params.search ?? "",
+        page: params.page ?? 1,
+        pageSize: params.pageSize ?? 12,
+      },
+    });
+    const nested = handleApiResponse<unknown>(data);
+    const paginated = handlePaginatedResponse<unknown>(nested, {
+      page: params.page,
+      pageSize: params.pageSize,
+    });
+
+    return {
+      items: paginated.items.map(mapCalendarEvent),
+      totalCount: paginated.totalCount,
+    };
+  },
+
+  getById: async (id: string | number): Promise<CalendarEvent> => {
+    const data = await apiGet<unknown>(`${API_PATHS.calendar.getEventById}/${id}`);
+    return mapCalendarEvent(handleApiResponse(data));
+  },
+
+  create: async (payload: unknown): Promise<CalendarEvent> => {
+    const data = await apiPost<unknown>(
+      API_PATHS.calendar.addEvent,
+      mapCalendarEventToBackend(payload as CalendarEvent),
+    );
+    return mapCalendarEvent(handleApiResponse(data));
+  },
+
+  update: async (id: string | number, payload: unknown): Promise<CalendarEvent> => {
+    const data = await apiPost<unknown>(API_PATHS.calendar.editEvent, {
+      ...mapCalendarEventToBackend(payload as CalendarEvent),
+      Id: Number(id),
+    });
+    return mapCalendarEvent(handleApiResponse(data));
+  },
+
+  delete: async (id: string | number): Promise<void> => {
+    await apiDelete<unknown>(`${API_PATHS.calendar.deleteEvent}/${id}`);
+  },
+};
diff --git a/src/domain/calendar/mappers/calendar-event-mapper.ts b/src/domain/calendar/mappers/calendar-event-mapper.ts
new file mode 100644
index 00000000..788d0b5b
--- /dev/null
+++ b/src/domain/calendar/mappers/calendar-event-mapper.ts
@@ -0,0 +1,88 @@
+import type { CalendarEvent, CalendarEventColor } from "@/domain/calendar/types/calendar-event";
+
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function readString(record: Record<string, unknown>, ...keys: string[]): string {
+  for (const key of keys) {
+    const value = record[key];
+    if (typeof value === "string") {
+      return value;
+    }
+  }
+  return "";
+}
+
+function readNumber(record: Record<string, unknown>, ...keys: string[]): number | null {
+  for (const key of keys) {
+    const value = record[key];
+    if (typeof value === "number") {
+      return value;
+    }
+  }
+  return null;
+}
+
+function readBoolean(record: Record<string, unknown>, ...keys: string[]): boolean {
+  for (const key of keys) {
+    const value = record[key];
+    if (typeof value === "boolean") {
+      return value;
+    }
+  }
+  return false;
+}
+
+const COLORS: CalendarEventColor[] = ["primary", "success", "info", "warning", "danger"];
+
+function normalizeColor(value: string): CalendarEventColor {
+  return COLORS.includes(value as CalendarEventColor) ? (value as CalendarEventColor) : "primary";
+}
+
+export function mapCalendarEvent(raw: unknown): CalendarEvent {
+  const record = isRecord(raw) ? raw : {};
+
+  return {
+    id: readNumber(record, "id", "Id") ?? 0,
+    title: readString(record, "title", "Title"),
+    description: readString(record, "description", "Description"),
+    location: readString(record, "location", "Location"),
+    recordId: readNumber(record, "recordID", "RecordID", "recordId", "RecordId"),
+    recordName: readString(record, "recordName", "RecordName"),
+    recordTargetType: readString(record, "recordTargetType", "RecordTargetType"),
+    reminderMinutes: readNumber(record, "reminderMinutes", "ReminderMinutes") ?? 15,
+    eventColor: normalizeColor(readString(record, "eventColor", "EventColor") || "primary"),
+    startDate: readString(record, "startDate", "StartDate"),
+    startTime: readString(record, "startTime", "StartTime"),
+    endDate: readString(record, "endDate", "EndDate"),
+    endTime: readString(record, "endTime", "EndTime"),
+    allDay: readBoolean(record, "allDay", "AllDay"),
+  };
+}
+
+export function mapCalendarEvents(raw: unknown): CalendarEvent[] {
+  if (!Array.isArray(raw)) {
+    return [];
+  }
+  return raw.map(mapCalendarEvent);
+}
+
+export function mapCalendarEventToBackend(event: Partial<CalendarEvent> & { id?: number }) {
+  return {
+    ...(event.id ? { Id: event.id } : {}),
+    Title: event.title ?? "",
+    Description: event.description ?? "",
+    Location: event.location ?? "",
+    RecordID: event.recordId ?? null,
+    RecordName: event.recordName ?? "",
+    RecordTargetType: event.recordTargetType ?? "",
+    ReminderMinutes: event.reminderMinutes ?? 15,
+    EventColor: event.eventColor ?? "primary",
+    StartDate: event.startDate ?? "",
+    StartTime: event.startTime ?? "",
+    EndDate: event.endDate ?? "",
+    EndTime: event.endTime ?? "",
+    AllDay: event.allDay ?? false,
+  };
+}
diff --git a/src/domain/calendar/schemas/calendar-event-schema.ts b/src/domain/calendar/schemas/calendar-event-schema.ts
new file mode 100644
index 00000000..adc6545f
--- /dev/null
+++ b/src/domain/calendar/schemas/calendar-event-schema.ts
@@ -0,0 +1,19 @@
+import { z } from "zod";
+
+export const calendarEventSchema = z.object({
+  title: z.string().min(1, "Title is required").max(100),
+  description: z.string().optional(),
+  location: z.string().max(150).optional(),
+  recordId: z.number().nullable().optional(),
+  recordName: z.string().optional(),
+  recordTargetType: z.string().optional(),
+  reminderMinutes: z.number().int().min(0),
+  eventColor: z.enum(["primary", "success", "info", "warning", "danger"]),
+  startDate: z.string().min(1, "Start date is required"),
+  startTime: z.string().optional(),
+  endDate: z.string().min(1, "End date is required"),
+  endTime: z.string().optional(),
+  allDay: z.boolean(),
+});
+
+export type CalendarEventFormValues = z.infer<typeof calendarEventSchema>;
diff --git a/src/domain/calendar/types/calendar-event.ts b/src/domain/calendar/types/calendar-event.ts
new file mode 100644
index 00000000..8c82456f
--- /dev/null
+++ b/src/domain/calendar/types/calendar-event.ts
@@ -0,0 +1,29 @@
+export type CalendarEventColor = "primary" | "success" | "info" | "warning" | "danger";
+
+export interface CalendarEvent {
+  id: number;
+  title: string;
+  description: string;
+  location: string;
+  recordId: number | null;
+  recordName: string;
+  recordTargetType: string;
+  reminderMinutes: number;
+  eventColor: CalendarEventColor;
+  startDate: string;
+  startTime: string;
+  endDate: string;
+  endTime: string;
+  allDay: boolean;
+}
+
+export interface CalendarEventsListParams {
+  search?: string;
+  page?: number;
+  pageSize?: number;
+}
+
+export interface CalendarEventsListResult {
+  items: CalendarEvent[];
+  totalCount: number;
+}
diff --git a/src/domain/calendar/use-cases/use-calendar-event-detail.ts b/src/domain/calendar/use-cases/use-calendar-event-detail.ts
new file mode 100644
index 00000000..55ed6e9c
--- /dev/null
+++ b/src/domain/calendar/use-cases/use-calendar-event-detail.ts
@@ -0,0 +1,13 @@
+import { useQuery, type UseQueryResult } from "@tanstack/react-query";
+import { calendarApi } from "@/domain/calendar/api/calendar-api";
+import type { CalendarEvent } from "@/domain/calendar/types/calendar-event";
+import { queryKeys } from "@/infra/query-key/query-key";
+import { requireQueryParam } from "@/lib/query/require-query-param";
+
+export function useCalendarEventDetail(id?: string): UseQueryResult<CalendarEvent, Error> {
+  return useQuery({
+    queryKey: queryKeys.calendar.detail(id ?? ""),
+    queryFn: () => calendarApi.getById(requireQueryParam(id, "Calendar event id")),
+    enabled: Boolean(id),
+  });
+}
diff --git a/src/domain/calendar/use-cases/use-calendar-events.ts b/src/domain/calendar/use-cases/use-calendar-events.ts
new file mode 100644
index 00000000..a0de7576
--- /dev/null
+++ b/src/domain/calendar/use-cases/use-calendar-events.ts
@@ -0,0 +1,20 @@
+import { useQuery, type UseQueryResult } from "@tanstack/react-query";
+import { calendarApi } from "@/domain/calendar/api/calendar-api";
+import type { CalendarEvent } from "@/domain/calendar/types/calendar-event";
+import { queryKeys } from "@/infra/query-key/query-key";
+
+export function useCalendarEvents(
+  start: Date | null,
+  end: Date | null,
+): UseQueryResult<CalendarEvent[], Error> {
+  return useQuery({
+    queryKey: queryKeys.calendar.range(start?.toISOString() ?? "", end?.toISOString() ?? ""),
+    queryFn: () => {
+      if (!start || !end) {
+        return Promise.resolve([]);
+      }
+      return calendarApi.getEventsForCalendar(start, end);
+    },
+    enabled: Boolean(start && end),
+  });
+}
diff --git a/src/domain/calendar/use-cases/use-create-calendar-event.ts b/src/domain/calendar/use-cases/use-create-calendar-event.ts
new file mode 100644
index 00000000..b9fa46e5
--- /dev/null
+++ b/src/domain/calendar/use-cases/use-create-calendar-event.ts
@@ -0,0 +1,28 @@
+import { useMutation, useQueryClient, type UseMutationResult } from "@tanstack/react-query";
+import { useNavigate } from "react-router-dom";
+import { toast } from "react-toastify";
+import { calendarApi } from "@/domain/calendar/api/calendar-api";
+import type { CalendarEventFormValues } from "@/domain/calendar/schemas/calendar-event-schema";
+import type { CalendarEvent } from "@/domain/calendar/types/calendar-event";
+import { queryKeys } from "@/infra/query-key/query-key";
+
+export function useCreateCalendarEvent(): UseMutationResult<
+  CalendarEvent,
+  Error,
+  CalendarEventFormValues
+> {
+  const navigate = useNavigate();
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: (values: CalendarEventFormValues) => calendarApi.create(values),
+    onSuccess: () => {
+      void queryClient.invalidateQueries({ queryKey: queryKeys.calendar.all });
+      toast.success("Event created successfully!");
+      navigate("/calendar");
+    },
+    onError: (error: Error) => {
+      toast.error(error.message || "Failed to create event");
+    },
+  });
+}
diff --git a/src/domain/calendar/use-cases/use-delete-calendar-event.ts b/src/domain/calendar/use-cases/use-delete-calendar-event.ts
new file mode 100644
index 00000000..0f05604d
--- /dev/null
+++ b/src/domain/calendar/use-cases/use-delete-calendar-event.ts
@@ -0,0 +1,19 @@
+import { useMutation, useQueryClient, type UseMutationResult } from "@tanstack/react-query";
+import { toast } from "react-toastify";
+import { calendarApi } from "@/domain/calendar/api/calendar-api";
+import { queryKeys } from "@/infra/query-key/query-key";
+
+export function useDeleteCalendarEvent(): UseMutationResult<void, Error, number> {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: (id: number) => calendarApi.delete(id),
+    onSuccess: () => {
+      void queryClient.invalidateQueries({ queryKey: queryKeys.calendar.all });
+      toast.success("Event deleted successfully!");
+    },
+    onError: (error: Error) => {
+      toast.error(error.message || "Failed to delete event");
+    },
+  });
+}
diff --git a/src/domain/calendar/use-cases/use-update-calendar-event.ts b/src/domain/calendar/use-cases/use-update-calendar-event.ts
new file mode 100644
index 00000000..3d6430ef
--- /dev/null
+++ b/src/domain/calendar/use-cases/use-update-calendar-event.ts
@@ -0,0 +1,34 @@
+import { useMutation, useQueryClient, type UseMutationResult } from "@tanstack/react-query";
+import { useNavigate } from "react-router-dom";
+import { toast } from "react-toastify";
+import { calendarApi } from "@/domain/calendar/api/calendar-api";
+import type { CalendarEventFormValues } from "@/domain/calendar/schemas/calendar-event-schema";
+import type { CalendarEvent } from "@/domain/calendar/types/calendar-event";
+import { queryKeys } from "@/infra/query-key/query-key";
+
+interface UpdateCalendarEventInput {
+  id: string;
+  values: CalendarEventFormValues;
+}
+
+export function useUpdateCalendarEvent(): UseMutationResult<
+  CalendarEvent,
+  Error,
+  UpdateCalendarEventInput
+> {
+  const navigate = useNavigate();
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({ id, values }: UpdateCalendarEventInput) => calendarApi.update(id, values),
+    onSuccess: (_data, variables) => {
+      void queryClient.invalidateQueries({ queryKey: queryKeys.calendar.all });
+      void queryClient.invalidateQueries({ queryKey: queryKeys.calendar.detail(variables.id) });
+      toast.success("Event updated successfully!");
+      navigate("/calendar");
+    },
+    onError: (error: Error) => {
+      toast.error(error.message || "Failed to update event");
+    },
+  });
+}