diff --git a/src/api/slot/content-types/slot/lifecycles.ts b/src/api/slot/content-types/slot/lifecycles.ts
index 5d12975..27cad7e 100644
--- a/src/api/slot/content-types/slot/lifecycles.ts
+++ b/src/api/slot/content-types/slot/lifecycles.ts
@@ -40,7 +40,7 @@ export default {
     if (datetime_start) {
       const now = dayjs().tz(DEFAULT_TZ);
       const slotStart = dayjs(datetime_start).tz(DEFAULT_TZ);
-      if (slotStart.isBefore(now, 'minute')) {
+      if (slotStart.isBefore(now, 'day')) {
         throw new Error(ERR_PAST_SLOT);
       }
     }