diff --git a/app/features/calendar/calendar-constants.ts b/app/features/calendar/calendar-constants.ts
index 1682889939..7a13bc8e74 100644
--- a/app/features/calendar/calendar-constants.ts
+++ b/app/features/calendar/calendar-constants.ts
@@ -74,6 +74,9 @@ export const CALENDAR_EVENT = {
 
 export const REG_CLOSES_AT_OPTIONS = [
 	"0",
+	"5min",
+	"10min",
+	"15min",
 	"30min",
 	"1h",
 	"1h30min",
diff --git a/app/features/calendar/calendar-utils.ts b/app/features/calendar/calendar-utils.ts
index 814bf9ad4a..85e43befb1 100644
--- a/app/features/calendar/calendar-utils.ts
+++ b/app/features/calendar/calendar-utils.ts
@@ -91,6 +91,12 @@ export function regClosesAtDate({
 	if (closesAt === "0") return startTime;
 
 	switch (closesAt) {
+		case "5min":
+			return new Date(startTime.getTime() - 5 * 60 * 1000);
+		case "10min":
+			return new Date(startTime.getTime() - 10 * 60 * 1000);
+		case "15min":
+			return new Date(startTime.getTime() - 15 * 60 * 1000);
 		case "30min":
 			return new Date(startTime.getTime() - 30 * 60 * 1000);
 		case "1h":
@@ -120,6 +126,12 @@ export function regClosesAtToDisplayName(closesAt: RegClosesAtOption) {
 	switch (closesAt) {
 		case "0":
 			return "At the start time";
+		case "5min":
+			return "5 minutes";
+		case "10min":
+			return "10 minutes";
+		case "15min":
+			return "15 minutes";
 		case "30min":
 			return "30 minutes";
 		case "1h":
@@ -154,6 +166,9 @@ export function datesToRegClosesAt({
 }) {
 	const diff = startTime.getTime() - regClosesAt.getTime();
 	if (diff === 0) return "0";
+	if (diff === 5 * 60 * 1000) return "5min";
+	if (diff === 10 * 60 * 1000) return "10min";
+	if (diff === 15 * 60 * 1000) return "15min";
 	if (diff === 30 * 60 * 1000) return "30min";
 	if (diff === 60 * 60 * 1000) return "1h";
 	if (diff === 90 * 60 * 1000) return "1h30min";