diff --git a/register.php b/register.php
index 0eb44d1..b133d4f 100644
--- a/register.php
+++ b/register.php
@@ -252,26 +252,32 @@ if (!$webinar) {
             .then(data => {
                 if (data.success) {
                     formContainer.style.display = 'none';
-                    const webinarTitle = encodeURIComponent(data.webinar_title);
+                                        const webinarTitle = encodeURIComponent(data.webinar_title);
                     const webinarDate = new Date(data.webinar_date_utc + 'Z');
-                    const startTime = webinarDate.toISOString().replace(/-|:|..*Z/g, '') + 'Z';
-                    const endTime = new Date(webinarDate.getTime() + (60 * 60 * 1000)).toISOString().replace(/-|:|..*Z/g, '') + 'Z';
+                    
+                    // Correctly format dates for UTC (YYYYMMDDTHHMMSSZ)
+                    const formatUTCDate = (date) => {
+                        return date.toISOString().replace(/\.\d{3}Z$/, 'Z').replace(/[-:]/g, '');
+                    };
 
-                    const googleLink = `https://www.google.com/calendar/render?action=TEMPLATE&text=${webinarTitle}&dates=${startTime.replace(/Z$/, '')}/${endTime.replace(/Z$/, '')}&details=Join+the+webinar!`;
+                    const startTime = formatUTCDate(webinarDate);
+                    const endTime = formatUTCDate(new Date(webinarDate.getTime() + (60 * 60 * 1000)));
+
+                    const googleLink = `https://www.google.com/calendar/render?action=TEMPLATE&text=${webinarTitle}&dates=${startTime}/${endTime}&details=Join+the+webinar!&ctz=UTC`;
                     
                     const icsContent = [
                         'BEGIN:VCALENDAR',
                         'VERSION:2.0',
                         'BEGIN:VEVENT',
                         `URL:${window.location.href}`,
-                        `DTSTART:${startTime.replace(/Z$/, '')}`,
-                        `DTEND:${endTime.replace(/Z$/, '')}`,
+                        `DTSTART:${startTime}`,
+                        `DTEND:${endTime}`,
                         `SUMMARY:${data.webinar_title}`,
                         'DESCRIPTION:Join the webinar!',
                         'END:VEVENT',
                         'END:VCALENDAR'
                     ].join('\n');
-                    const outlookLink = `data:text/calendar;charset=utf8,${encodeURIComponent(icsContent)}`;
+                    const outlookLink = `data:text/calendar;charset=utf-8,${encodeURIComponent(icsContent)}`;
 
                     formResult.innerHTML = `
                         <div class="success-message">