From 326975ccad0d8c819042981e801b20e79c6c3567 Mon Sep 17 00:00:00 2001
From: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
Date: Mon, 3 Nov 2025 21:09:34 -0500
Subject: [PATCH] [core] Fix ESPTime crash (#11705)

---
 esphome/core/time.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/esphome/core/time.h b/esphome/core/time.h
index ffcfced41..68826dabd 100644
--- a/esphome/core/time.h
+++ b/esphome/core/time.h
@@ -84,6 +84,9 @@ struct ESPTime {
    */
   static ESPTime from_epoch_local(time_t epoch) {
     struct tm *c_tm = ::localtime(&epoch);
+    if (c_tm == nullptr) {
+      return ESPTime{};  // Return an invalid ESPTime
+    }
     return ESPTime::from_c_tm(c_tm, epoch);
   }
   /** Convert an UTC epoch timestamp to a UTC time ESPTime instance.
@@ -93,6 +96,9 @@ struct ESPTime {
    */
   static ESPTime from_epoch_utc(time_t epoch) {
     struct tm *c_tm = ::gmtime(&epoch);
+    if (c_tm == nullptr) {
+      return ESPTime{};  // Return an invalid ESPTime
+    }
     return ESPTime::from_c_tm(c_tm, epoch);
   }