diff --git a/app/assets/javascripts/loginAlert.js b/app/assets/javascripts/loginAlert.js
index 1f3281788..84c2ee6a8 100644
--- a/app/assets/javascripts/loginAlert.js
+++ b/app/assets/javascripts/loginAlert.js
@@ -1,7 +1,7 @@
 (function (window) {
 
 // Set the target date (10 days before March 15th, 2024)
-  const targetDate = new Date("April 9, 2024 00:00:00").getTime();
+  const targetDate = new Date("April 16, 2024 00:00:00").getTime();
 
  // Function to update the countdown display
   function updateCountdown() {
diff --git a/app/templates/views/signin.html b/app/templates/views/signin.html
index 1b8201275..e3e478a91 100644
--- a/app/templates/views/signin.html
+++ b/app/templates/views/signin.html
@@ -15,7 +15,7 @@
 <div class="grid-row">
   <div id="countdown-container" class="usa-alert usa-alert--warning width-full margin-bottom-4">
     <div class="usa-alert__body">
-      <h4 class="usa-alert__heading">Login.gov is required by April 9, 2024</h4>
+      <h4 class="usa-alert__heading">Login.gov is required by April 16, 2024</h4>
       <p class="usa-alert__text">
         You have <span id="countdown"></span> left to use Login.gov to sign in
       </p>
@@ -51,7 +51,7 @@
     {% endcall %}
   </div>
   <div class="tablet:grid-col-6 tablet:grid-offset-1 margin-top-2 padding-y-2 padding-x-4 bg-base-lightest">
-    <h2 class="font-body-lg">Notify.gov is changing the sign-in experience to Login.gov effective<br>April 9, 2024</h2>
+    <h2 class="font-body-lg">Notify.gov is changing the sign-in experience to Login.gov effective<br>April 16, 2024</h2>
     <p>Why are we doing this?</p>
     <ul class="usa-list">
       <li><strong>Enhanced security:</strong> Login.gov is really secure and trustworthy</li>
@@ -61,7 +61,7 @@
     <p>What do I need to do?</p>
     <ul class="usa-list">
       <li>If you have a Login.gov account, start using it to sign in to Notify today.</li>
-      <li>If you don’t have a Login.gov account, you must create one by April 9, 2024 to continue to access Notify.</li>
+      <li>If you don’t have a Login.gov account, you must create one by April 16, 2024 to continue to access Notify.</li>
     </ul>
     <div class="border-bottom border-base-lighter margin-y-4"></div>
     <a class="usa-link usa-button margin-bottom-3" href="{{ create_login_account_url }}">Create Login.gov account</a>
diff --git a/tests/javascripts/loginAlert.test.js b/tests/javascripts/loginAlert.test.js
index 895aa3647..085434b6a 100644
--- a/tests/javascripts/loginAlert.test.js
+++ b/tests/javascripts/loginAlert.test.js
@@ -4,7 +4,7 @@ beforeAll(() => {
      document.body.innerHTML = `
          <div id="countdown-container" class="usa-alert usa-alert--warning width-full margin-bottom-4">
             <div class="usa-alert__body">
-            <h4 class="usa-alert__heading">Login.gov is required by April 9, 2024</h4>
+            <h4 class="usa-alert__heading">Login.gov is required by April 16, 2024</h4>
             <p class="usa-alert__text">
                 You have <span id="countdown"></span> left to use Login.gov to sign in
             </p>
@@ -17,7 +17,7 @@ beforeAll(() => {
 });
 
 jest.useFakeTimers();
-const targetDate = new Date("April 9, 2024 00:00:00"); // Reference point
+const targetDate = new Date("April 16, 2024 00:00:00"); // Reference point
 
 test('Hides the countdown if more than 10 days away', () => {
     jest.setSystemTime(targetDate.getTime() - 12 * 24 * 60 * 60 * 1000); // 12 days before