diff --git a/conferences/uist.yml b/conferences/uist.yml
index 0cb8a43..b39e9fe 100644
--- a/conferences/uist.yml
+++ b/conferences/uist.yml
@@ -28,8 +28,8 @@
   year: 2025
   id: uist25
   link: https://uist.acm.org/2025/
-  deadline: '2025-04-09 17:00:00'
-  abstract_deadline: '2025-04-02 17:00:00'
+  deadline: '2025-04-09 23:59:59'
+  abstract_deadline: '2025-04-02 23:59:59'
   timezone: UTC-12
   place: Busan, Korea
   date: September 28th - October 1st, 2025