diff --git a/ui/site/src/userGamesDownload.ts b/ui/site/src/userGamesDownload.ts
index cdc4d04efd..81b93b16a6 100644
--- a/ui/site/src/userGamesDownload.ts
+++ b/ui/site/src/userGamesDownload.ts
@@ -9,8 +9,8 @@ function generateSearchParams(): string {
     });
 
   ['since', 'until'].forEach(name => {
-    const minTimestamp = 1356998400070;
-    const date = $(`#dl-date-${name}`).val() as string;
+    const minTimestamp = 1356998400070; // 01/01/2013, 01:00:00
+    const date = ($(`#dl-date-${name}`).val() as string).replace(/-/g, '/'); // for Safari https://stackoverflow.com/a/4310986/11955835
     const time = $(`#dl-time-${name}`).val() as string;
     if (date.length == 10) {
       // the 00:00:00 is necessary for the time to be interpreted in the local timezone