diff --git a/esphome/core/time.cpp b/esphome/core/time.cpp
index 288e9c4a82..31977d972b 100644
--- a/esphome/core/time.cpp
+++ b/esphome/core/time.cpp
@@ -189,7 +189,6 @@ void ESPTime::recalc_timestamp_utc(bool use_day_of_year) {
 }
 
 void ESPTime::recalc_timestamp_local() {
-  time_t res = 0;
   struct tm tm;
 
   tm.tm_year = this->year - 1900;