diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 9318c627..dfa155a2 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -428,7 +428,7 @@ u64 Memory::timeSince3DSEpoch() {
 	std::time_t rawTime = std::time(nullptr); // Get current UTC time
 	auto localTime = std::localtime(&rawTime); // Convert to local time
 
-	bool daylightSavings = localTime->tm_isdst; // Get if time includes DST
+	bool daylightSavings = localTime->tm_isdst > 0; // Get if time includes DST
 	localTime = std::gmtime(&rawTime);
 
 	// Use gmtime + mktime to calculate difference between local time and UTC
@@ -437,7 +437,8 @@ u64 Memory::timeSince3DSEpoch() {
 		timezoneDifference += 60ull * 60ull; // Add 1 hour (60 seconds * 60 minutes)
 	}
 
-	milliseconds ms = duration_cast<milliseconds>(seconds(rawTime + timezoneDifference));
-	constexpr u64 offset = 2208988800ull * 1000;
-	return ms.count() + offset;
+	// seconds between Jan 1 1900 and Jan 1 1970
+	constexpr u64 offset = 2208988800ull;
+	milliseconds ms = duration_cast<milliseconds>(seconds(rawTime + timezoneDifference + offset));
+	return ms.count();
 }
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