diff --git a/Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp b/Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp
index 1eba7ec999..996d9f325a 100644
--- a/Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp
@@ -399,7 +399,7 @@ ThrowCompletionOr<BalancedDuration> balance_duration(GlobalObject& global_object
         // h. Set seconds to seconds modulo 60.
         seconds = seconds_division_result.remainder.to_double();
         // i. Set hours to floor(minutes / 60).
-        auto minutes_division_result = milliseconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(60));
+        auto minutes_division_result = seconds_division_result.quotient.divided_by(Crypto::UnsignedBigInteger(60));
         hours = minutes_division_result.quotient.to_double();
         // j. Set minutes to minutes modulo 60.
         minutes = minutes_division_result.remainder.to_double();
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.since.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.since.js
index 95d7ac0483..fa806cbb01 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.since.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.since.js
@@ -7,7 +7,7 @@ describe("correct behavior", () => {
         const instant1 = new Temporal.Instant(1625614920000000000n);
         const instant2 = new Temporal.Instant(0n);
         expect(instant1.since(instant2).seconds).toBe(1625614920);
-        expect(instant1.since(instant2, { largestUnit: "hour" }).hours).toBe(27093582);
+        expect(instant1.since(instant2, { largestUnit: "hour" }).hours).toBe(451559);
     });
 });
 
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.until.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.until.js
index 2f009bfe5c..64ea328ca9 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.until.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Instant/Instant.prototype.until.js
@@ -7,7 +7,7 @@ describe("correct behavior", () => {
         const instant1 = new Temporal.Instant(0n);
         const instant2 = new Temporal.Instant(1625614920000000000n);
         expect(instant1.until(instant2).seconds).toBe(1625614920);
-        expect(instant1.until(instant2, { largestUnit: "hour" }).hours).toBe(27093582);
+        expect(instant1.until(instant2, { largestUnit: "hour" }).hours).toBe(451559);
     });
 });