diff --git a/core/src/components/alert/alert.tsx b/core/src/components/alert/alert.tsx
index 61dd0b713b..9f1cbc4d6c 100644
--- a/core/src/components/alert/alert.tsx
+++ b/core/src/components/alert/alert.tsx
@@ -596,7 +596,7 @@ export class Alert implements ComponentInterface, OverlayInterface {
         role={role}
         aria-modal="true"
         aria-labelledby={ariaLabelledBy}
-        aria-describedby={message ? msgId : null}
+        aria-describedby={message !== undefined ? msgId : null}
         tabindex="-1"
         {...(htmlAttributes as any)}
         style={{
diff --git a/core/src/components/datetime/utils/format.ts b/core/src/components/datetime/utils/format.ts
index beddc2319f..3647a48310 100644
--- a/core/src/components/datetime/utils/format.ts
+++ b/core/src/components/datetime/utils/format.ts
@@ -145,7 +145,8 @@ export const getYear = (locale: string, refParts: DatetimeParts) => {
 };
 
 const getNormalizedDate = (refParts: DatetimeParts) => {
-  const timeString = !!refParts.hour && !!refParts.minute ? ` ${refParts.hour}:${refParts.minute}` : '';
+  const timeString =
+    refParts.hour !== undefined && refParts.minute !== undefined ? ` ${refParts.hour}:${refParts.minute}` : '';
 
   return new Date(`${refParts.month}/${refParts.day}/${refParts.year}${timeString} GMT+0000`);
 };
diff --git a/core/src/utils/test/playwright/matchers/toHaveReceivedEventTimes.ts b/core/src/utils/test/playwright/matchers/toHaveReceivedEventTimes.ts
index 1484c6a791..2b8c2c39a9 100644
--- a/core/src/utils/test/playwright/matchers/toHaveReceivedEventTimes.ts
+++ b/core/src/utils/test/playwright/matchers/toHaveReceivedEventTimes.ts
@@ -1,6 +1,7 @@
 import type { EventSpy } from '../page/event-spy';
 
 export function toHaveReceivedEventTimes(eventSpy: EventSpy, count: number) {
+  // eslint-disable-next-line @typescript-eslint/strict-boolean-expressions
   if (!eventSpy) {
     return {
       message: () => `toHaveReceivedEventTimes event spy is null`,