diff --git a/src/utils.ts b/src/utils.ts
index a7d0bbe..a4a7f44 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -7,7 +7,11 @@ export function getCurrentDate(): Date {
 }
 
 export function getCurrentSessionKey(): string {
-  return getCurrentDate().toISOString().slice(0, 10)
+  const now = getCurrentDate()
+  // https://stackoverflow.com/a/28149561
+  const tzoffset = now.getTimezoneOffset() * 60000
+  const localISOTime = new Date(now.getTime() - tzoffset).toISOString()
+  return localISOTime.slice(0, 10)
 }
 
 // #region RNG