diff --git a/packages/backend/src/sms/services/generators/generateScheduleSendDate.spec.ts b/packages/backend/src/sms/services/generators/generateScheduleSendDate.spec.ts
index 79b0fb173b..1a47ee0330 100644
--- a/packages/backend/src/sms/services/generators/generateScheduleSendDate.spec.ts
+++ b/packages/backend/src/sms/services/generators/generateScheduleSendDate.spec.ts
@@ -1,5 +1,6 @@
 import { Structure } from "@domifa/common";
 import { generateScheduleSendDate } from "./generateScheduleSendDate";
+import { utcToZonedTime } from "date-fns-tz";
 
 const structure: Pick<Structure, "sms"> = {
   sms: {
@@ -9,9 +10,9 @@ const structure: Pick<Structure, "sms"> = {
     senderName: "",
     schedule: {
       monday: false,
-      tuesday: true,
+      tuesday: false,
       wednesday: false,
-      thursday: true,
+      thursday: false,
       friday: false,
     },
   },
@@ -19,16 +20,40 @@ const structure: Pick<Structure, "sms"> = {
 
 describe("Generate SMS Schedule Date", () => {
   it("Should set scheduled date for the next tuesday, because it's monday", () => {
-    const monday = new Date("2021-10-25T10:00:00.000Z");
-    const tuesdayRef = new Date("2021-10-26T19:00:00.000Z");
-    expect(generateScheduleSendDate(structure, monday)).toEqual(tuesdayRef);
+    const monday = new Date("2024-05-06T10:00:00.000Z");
+    const tuesdayRef = new Date("2024-05-07T19:00:00.000Z");
+    structure.sms.schedule.tuesday = true;
+
+    const expectedDate = utcToZonedTime(
+      generateScheduleSendDate(structure, monday),
+      "Europe/Paris"
+    );
+
+    expect(expectedDate).toEqual(tuesdayRef);
   });
 
-  it("Should set scheduled date for the next friday, because it's monday", () => {
-    const monday = new Date("2021-10-25T10:00:00.000Z");
+  it("Receive & Send on same day: friday 10 may 2024, before 19:00", () => {
+    const friday = new Date("2024-05-10T18:00:00.000Z");
+    const fridayRef = new Date("2024-05-10T19:00:00.000Z");
     structure.sms.schedule.tuesday = false;
     structure.sms.schedule.friday = true;
-    const friday = new Date("2021-10-28T19:00:00.000Z");
-    expect(generateScheduleSendDate(structure, monday)).toEqual(friday);
+    const expectedDate = utcToZonedTime(
+      generateScheduleSendDate(structure, friday),
+      "Europe/Paris"
+    );
+
+    expect(expectedDate).toEqual(fridayRef);
+  });
+  it("Receive after 19:00, send next week", () => {
+    const friday = new Date("2024-05-10T21:05:00.000Z");
+    const fridayRef = new Date("2024-05-17T19:00:00.000Z");
+    structure.sms.schedule.tuesday = false;
+    structure.sms.schedule.friday = true;
+    const expectedDate = utcToZonedTime(
+      generateScheduleSendDate(structure, friday),
+      "Europe/Paris"
+    );
+
+    expect(expectedDate).toEqual(fridayRef);
   });
 });
diff --git a/packages/backend/src/sms/services/generators/generateScheduleSendDate.ts b/packages/backend/src/sms/services/generators/generateScheduleSendDate.ts
index bb6bab0df8..e84a7e950a 100644
--- a/packages/backend/src/sms/services/generators/generateScheduleSendDate.ts
+++ b/packages/backend/src/sms/services/generators/generateScheduleSendDate.ts
@@ -21,8 +21,12 @@ export const generateScheduleSendDate = (
 
   const nextDayId = getNextClosestDay(days, dateReference);
 
-  const nextDate = nextDay(dateReference, nextDayId as Day);
-  nextDate.setHours(19, 0, 0);
+  const nextDate =
+    nextDayId === dateReference.getDay() && dateReference.getUTCHours() < 19
+      ? dateReference
+      : nextDay(dateReference, nextDayId as Day);
+
+  nextDate.setUTCHours(19, 0, 0);
   return nextDate;
 };
 
@@ -30,8 +34,6 @@ function getNextClosestDay(days: string[], dateReference: Date): number {
   const todayIndex = dateReference.getDay();
   const dayIndices = days.map((day) => weekDays.indexOf(day.toLowerCase()));
 
-  dayIndices.sort((a, b) => a - b);
-
   for (const dayIndex of dayIndices) {
     if (dayIndex >= todayIndex) {
       return dayIndex;