diff --git a/Meta/Lagom/Tools/CodeGenerators/LibLocale/GenerateDateTimeFormatData.cpp b/Meta/Lagom/Tools/CodeGenerators/LibLocale/GenerateDateTimeFormatData.cpp
index 9eb5fb687a..8481023696 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibLocale/GenerateDateTimeFormatData.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/LibLocale/GenerateDateTimeFormatData.cpp
@@ -575,9 +575,9 @@ static ErrorOr<void> parse_hour_cycles(DeprecatedString core_path, CLDR& cldr)
     auto const& time_data_object = supplemental_object.get_object("timeData"sv).value();
 
     auto parse_hour_cycle = [](StringView hour_cycle) -> Optional<Locale::HourCycle> {
-        if (hour_cycle == "h"sv)
+        if (hour_cycle.is_one_of("h"sv, "hb"sv, "hB"sv))
             return Locale::HourCycle::H12;
-        if (hour_cycle == "H"sv)
+        if (hour_cycle.is_one_of("H"sv, "Hb"sv, "HB"sv))
             return Locale::HourCycle::H23;
         if (hour_cycle == "K"sv)
             return Locale::HourCycle::H11;
diff --git a/Userland/Libraries/LibJS/Tests/builtins/Intl/DateTimeFormat/DateTimeFormat.prototype.resolvedOptions.js b/Userland/Libraries/LibJS/Tests/builtins/Intl/DateTimeFormat/DateTimeFormat.prototype.resolvedOptions.js
index 68b8136552..d17b5592b4 100644
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/DateTimeFormat/DateTimeFormat.prototype.resolvedOptions.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/DateTimeFormat/DateTimeFormat.prototype.resolvedOptions.js
@@ -109,6 +109,18 @@ describe("correct behavior", () => {
         const ja3 = Intl.DateTimeFormat("ja", { hour: "numeric", hour12: false });
         expect(ja3.resolvedOptions().hourCycle).toBe("h23");
         expect(ja3.resolvedOptions().hour12).toBeFalse();
+
+        const fr1 = Intl.DateTimeFormat("fr", { hour: "numeric" });
+        expect(fr1.resolvedOptions().hourCycle).toBe("h23");
+        expect(fr1.resolvedOptions().hour12).toBeFalse();
+
+        const fr2 = Intl.DateTimeFormat("fr", { hour: "numeric", hour12: true });
+        expect(fr2.resolvedOptions().hourCycle).toBe("h12");
+        expect(fr2.resolvedOptions().hour12).toBeTrue();
+
+        const fr3 = Intl.DateTimeFormat("fr", { hour: "numeric", hour12: false });
+        expect(fr3.resolvedOptions().hourCycle).toBe("h23");
+        expect(fr3.resolvedOptions().hour12).toBeFalse();
     });
 
     test("timeZone", () => {