diff --git a/packages/core/src/__mocks__/v1/events/events.misc.ts b/packages/core/src/__mocks__/v1/events/events.misc.ts
index 3e817ff4d..f2938fcb9 100644
--- a/packages/core/src/__mocks__/v1/events/events.misc.ts
+++ b/packages/core/src/__mocks__/v1/events/events.misc.ts
@@ -74,7 +74,7 @@ export const GROCERIES: Schema_Event = {
   priorities: [],
   isAllDay: false,
   startDate: "2022-02-21T11:45:00-06:00",
-  endDate: "2022-02-212T12:45:00-06:00",
+  endDate: "2022-02-21T12:45:00-06:00",
   priority: Priorities.RELATIONS,
 };
 export const MULTI_WEEK: Schema_Event = {
diff --git a/packages/web/src/__tests__/Calendar/calendar.render.test.tsx b/packages/web/src/__tests__/Calendar/calendar.render.test.tsx
index ae668978f..b10e735f1 100644
--- a/packages/web/src/__tests__/Calendar/calendar.render.test.tsx
+++ b/packages/web/src/__tests__/Calendar/calendar.render.test.tsx
@@ -1,6 +1,9 @@
 import React from "react";
 import "@testing-library/jest-dom";
 import { screen, waitFor } from "@testing-library/react";
+import { GROCERIES } from "@core/__mocks__/v1/events/events.misc";
+import { findAndUpdateEventInPreloadedState } from "@web/__tests__/Calendar/calendar.render.test.utils";
+import { freshenEventStartEndDate } from "@web/__tests__/Calendar/calendar.render.test.utils";
 import { preloadedState } from "@web/__tests__/__mocks__/state/state.weekEvents";
 import { getWeekDayLabel } from "@web/common/utils/event.util";
 import { CalendarView } from "@web/views/Calendar";
@@ -52,9 +55,15 @@ describe("Calendar: Display without State", () => {
 });
 
 describe("Calendar: Display with State", () => {
-  it("dispays timed events", async () => {
+  it("displays timed events", async () => {
+    const newPreloadedState = findAndUpdateEventInPreloadedState(
+      preloadedState,
+      GROCERIES._id as string,
+      freshenEventStartEndDate,
+    );
+
     await waitFor(() => {
-      render(<CalendarView />, { state: preloadedState });
+      render(<CalendarView />, { state: newPreloadedState });
     });
     expect(
       screen.getByRole("button", { name: /groceries/i }),
diff --git a/packages/web/src/__tests__/Calendar/calendar.render.test.utils.ts b/packages/web/src/__tests__/Calendar/calendar.render.test.utils.ts
new file mode 100644
index 000000000..35e3c494f
--- /dev/null
+++ b/packages/web/src/__tests__/Calendar/calendar.render.test.utils.ts
@@ -0,0 +1,40 @@
+import dayjs from "dayjs";
+import { PreloadedState } from "redux";
+import { Schema_Event } from "@core/types/event.types";
+
+export const freshenEventStartEndDate = (event: Schema_Event): Schema_Event => {
+  const newStartDate = dayjs(new Date()).add(1, "day").format();
+  const newEndDate = dayjs(new Date()).add(3, "day").format();
+  return { ...event, startDate: newStartDate, endDate: newEndDate };
+};
+
+export const findAndUpdateEventInPreloadedState = (
+  preloadedState: ReturnType<PreloadedState>,
+  eventId: string,
+  callback: (event: Schema_Event) => Schema_Event,
+) => {
+  if (!eventId) {
+    throw new Error("Event ID is required");
+  }
+
+  const event = preloadedState.events.entities.value[eventId];
+  if (!event) {
+    throw new Error(`Event with id ${eventId} not found`);
+  }
+
+  const newPreloadedState = {
+    ...preloadedState,
+    events: {
+      ...preloadedState.events,
+      entities: {
+        ...preloadedState.events.entities,
+        value: {
+          ...preloadedState.events.entities.value,
+          [eventId]: callback(event),
+        },
+      },
+    },
+  };
+
+  return newPreloadedState;
+};
diff --git a/packages/web/src/__tests__/__mocks__/server/mock.handlers.ts b/packages/web/src/__tests__/__mocks__/server/mock.handlers.ts
index 7a18700ec..eb1995e27 100644
--- a/packages/web/src/__tests__/__mocks__/server/mock.handlers.ts
+++ b/packages/web/src/__tests__/__mocks__/server/mock.handlers.ts
@@ -7,6 +7,7 @@ import {
   MULTI_WEEK,
   TY_TIM,
 } from "@core/__mocks__/v1/events/events.misc";
+import { freshenEventStartEndDate } from "@web/__tests__/Calendar/calendar.render.test.utils";
 import { ENV_WEB } from "@web/common/constants/env.constants";
 
 export const globalHandlers = [
@@ -28,7 +29,14 @@ export const globalHandlers = [
       );
     }
 
-    const events = [CLIMB, MARCH_1, MULTI_WEEK, TY_TIM, GROCERIES];
+    const events = [
+      CLIMB,
+      MARCH_1,
+      MULTI_WEEK,
+      TY_TIM,
+      // TODO: Need some way to inject the event into globalHandlers.events in a more dynamic way.
+      freshenEventStartEndDate(GROCERIES),
+    ];
     return res(ctx.json(events));
   }),
   rest.delete(`${ENV_WEB.API_BASEURL}/event/:id`, (req, res, ctx) => {
diff --git a/packages/web/src/ducks/events/sagas/event.sagas.ts b/packages/web/src/ducks/events/sagas/event.sagas.ts
index d297c2719..5732b11d1 100644
--- a/packages/web/src/ducks/events/sagas/event.sagas.ts
+++ b/packages/web/src/ducks/events/sagas/event.sagas.ts
@@ -37,6 +37,7 @@ import {
 import { getSomedayEventsSlice } from "../slices/someday.slice";
 import { getWeekEventsSlice } from "../slices/week.slice";
 import {
+  EventDateUtils,
   insertOptimisticEvent,
   normalizedEventsSchema,
   replaceOptimisticId,
@@ -161,12 +162,21 @@ function* getEvents(
       yield put(eventsEntitiesSlice.actions.insert(payload.data));
       return { data: payload.data };
     }
+
+    const _payload = EventDateUtils.adjustStartEndDate(payload);
+
     const res: Response_GetEventsSuccess = (yield call(
       EventApi.get,
-      payload,
+      _payload,
     )) as Response_GetEventsSuccess;
 
-    const normalizedEvents = normalize<Schema_Event>(res.data, [
+    const events = EventDateUtils.filterEventsByStartEndDate(
+      res.data,
+      payload.startDate,
+      payload.endDate,
+    );
+
+    const normalizedEvents = normalize<Schema_Event>(events, [
       normalizedEventsSchema(),
     ]);
 
diff --git a/packages/web/src/ducks/events/sagas/saga.util.ts b/packages/web/src/ducks/events/sagas/saga.util.ts
index 98eb07c13..678b466b9 100644
--- a/packages/web/src/ducks/events/sagas/saga.util.ts
+++ b/packages/web/src/ducks/events/sagas/saga.util.ts
@@ -1,7 +1,8 @@
+import dayjs from "dayjs";
 import { schema } from "normalizr";
 import { normalize } from "normalizr";
 import { put, select } from "redux-saga/effects";
-import { Schema_Event } from "@core/types/event.types";
+import { Params_Events, Schema_Event } from "@core/types/event.types";
 import { Schema_GridEvent } from "@web/common/types/web.event.types";
 import { RootState } from "@web/store";
 import { selectEventById } from "../selectors/event.selectors";
@@ -63,3 +64,43 @@ export function* replaceOptimisticId(
 
 export const normalizedEventsSchema = () =>
   new schema.Entity("events", {}, { idAttribute: "_id" });
+
+// Meant to be a hotfix to address issue where backend returns date
+// filtered events in an inconsistent way.
+// See https://github.com/SwitchbackTech/compass/issues/428
+// Should be removed after backend is fixed
+export const EventDateUtils = {
+  /**
+   * Adjusts start and end dates for event queries
+   */
+  adjustStartEndDate: (payload: Params_Events) => {
+    if (payload.someday) return payload;
+
+    // Make start date 1 day before the start date
+    const startDate = dayjs(payload.startDate).subtract(1, "day").format();
+    const endDate = payload.endDate;
+
+    return {
+      ...payload,
+      startDate,
+      endDate,
+    };
+  },
+
+  /**
+   * Filters events by start and end date range
+   * Handles comparison between different date formats (raw dates vs ISO 8601)
+   */
+  filterEventsByStartEndDate: (
+    events: Schema_Event[],
+    startDate: string,
+    endDate: string,
+  ) => {
+    return events.filter((event) => {
+      return (
+        dayjs(event.startDate).isSameOrAfter(startDate) &&
+        dayjs(event.endDate).isSameOrBefore(endDate)
+      );
+    });
+  },
+} as const;