diff --git a/src/corelib/time/qtimezone.cpp b/src/corelib/time/qtimezone.cpp
index f5e105b8311..8f754549e87 100644
--- a/src/corelib/time/qtimezone.cpp
+++ b/src/corelib/time/qtimezone.cpp
@@ -254,31 +254,34 @@ Q_GLOBAL_STATIC(QTimeZoneSingleton, global_tz);
 */
 
 /*!
-  \enum QTimeZone::anonymous
+    \variable QTimeZone::MinUtcOffsetSecs
+    \brief Timezone offsets from UTC are expected to be no lower than this.
 
-  This enumeration provides constants bounding the range of plausible timezone
-  offsets from UTC, measured in seconds.
+    The lowest UTC offset of any early 21st century timezone is -12 hours (Baker
+    Island, USA), or 12 hours west of Greenwich.
 
-  Sane modern zones' UTC offsets range from -14 to +12 hours.
-  No known modern zone has offset > 12 hrs West of Greenwich (Baker Island, USA).
-  No known modern zone has offset > 14 hrs East of Greenwich
-  (Kiritimati, Christmas Island, Kiribati).
-  Note that there are zones whose offsets differ by more than a day.
+    Historically, until 1844, The Philippines (then controlled by Spain) used
+    the same date as Spain's American holdings, so had offsets close to 16 hours
+    west of Greenwich. As The Philippines was using local solar mean time, it is
+    possible some outlying territory of it may have been operating at more than
+    16 hours west of Greenwich, but no early 21st century timezone traces its
+    history back to such an extreme.
 
-  Historically, before 1867, when Russia sold Alaska to America, Alaska used the
-  same date as Russia, so had offsets over 15 hours East of Greenwich.
-  Earlier still, until 1844, The Philippines (then controlled by Spain) used the
-  same date as Spain's American holdings, so had offsets close to 16 hours West
-  of Greenwich.
-  Each made its one-day transition to cross the international date line while
-  using local solar mean time, before adopting a unified time-zone, so the
-  offsets within their territories were variable.
-  As a result, The Philippines might have exceeded 16 hours as offset at the
-  extremities of its territory, but no modern zone's representative location was
-  at such an extremity.
+    \sa MaxUtcOffsetSecs
+*/
+/*!
+    \variable QTimeZone::MaxUtcOffsetSecs
+    \brief Timezone offsets from UTC are expected to be no higher than this.
 
-  \value MinUtcOffsetSecs -16 * 3600,
-  \value MaxUtcOffsetSecs +16 * 3600
+    The highest UTC offset of any early 21st century timezone is +14 hours
+    (Christmas Island, Kiribati, Kiritimati), or 14 hours east of Greenwich.
+
+    Historically, before 1867, when Russia sold Alaska to America, Alaska used
+    the same date as Russia, so had offsets over 15 hours east of Greenwich. As
+    Alaska was using local solar mean time, its offsets varied, but all were
+    less than 16 hours east of Greenwich.
+
+    \sa MinUtcOffsetSecs
 */
 
 #if QT_CONFIG(timezone)
@@ -489,6 +492,8 @@ QTimeZone::QTimeZone(const QByteArray &ianaId)
     returned instance is equivalent to the lightweight time representation
     \c{QTimeZone::fromSecondsAfterUtc(offsetSeconds)}, albeit implemented as a
     time zone.
+
+    \sa MinUtcOffsetSecs, MaxUtcOffsetSecs
 */
 
 QTimeZone::QTimeZone(int offsetSeconds)
@@ -516,7 +521,8 @@ QTimeZone::QTimeZone(int offsetSeconds)
 
     This constructor is only available when feature \c timezone is enabled.
 
-    \sa id(), offsetFromUtc(), displayName(), abbreviation(), territory(), comment()
+    \sa id(), offsetFromUtc(), displayName(), abbreviation(), territory(), comment(),
+        MinUtcOffsetSecs, MaxUtcOffsetSecs
 */
 
 QTimeZone::QTimeZone(const QByteArray &ianaId, int offsetSeconds, const QString &name,
@@ -629,7 +635,8 @@ QTimeZone QTimeZone::asBackendZone() const
     Qt::OffsetFromUTC. An invalid time zone, when returned, has Qt::TimeZone as
     its timeSpec().
 
-    \sa QTimeZone(int), asBackendZone(), fixedSecondsAheadOfUtc()
+    \sa QTimeZone(int), asBackendZone(), fixedSecondsAheadOfUtc(),
+        MinUtcOffsetSecs, MaxUtcOffsetSecs
 */
 
 /*!
diff --git a/src/corelib/time/qtimezone.h b/src/corelib/time/qtimezone.h
index 7dd2ba4cf02..6040624f61a 100644
--- a/src/corelib/time/qtimezone.h
+++ b/src/corelib/time/qtimezone.h
@@ -83,14 +83,12 @@ class Q_CORE_EXPORT QTimeZone
 
 public:
     // Sane UTC offsets range from -16 to +16 hours:
-    enum {
-        // No known modern zone > 12 hrs West of Greenwich.
-        // Until 1844, Asia/Manila (in The Philippines) was at 15:56 West.
-        MinUtcOffsetSecs = -16 * 3600,
-        // No known modern zone > 14 hrs East of Greenwich.
-        // Until 1867, America/Metlakatla (in Alaska) was at 15:13:42 East.
-        MaxUtcOffsetSecs = +16 * 3600
-    };
+    static constexpr int MinUtcOffsetSecs = -16 * 3600;
+    // No known modern zone > 12 hrs West of Greenwich.
+    // Until 1844, Asia/Manila (in The Philippines) was at 15:56 West.
+    static constexpr int MaxUtcOffsetSecs = +16 * 3600;
+    // No known modern zone > 14 hrs East of Greenwich.
+    // Until 1867, America/Metlakatla (in Alaska) was at 15:13:42 East.
 
     enum Initialization { LocalTime, UTC };
 
diff --git a/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp b/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp
index da1d3b4e764..ea52033723e 100644
--- a/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp
+++ b/tests/auto/corelib/time/qtimezone/tst_qtimezone.cpp
@@ -1163,8 +1163,8 @@ void tst_QTimeZone::utcTest()
     QCOMPARE(tz.daylightTimeOffset(now), 0);
 
     // Test validity range of UTC offsets:
-    int min = int(QTimeZone::MinUtcOffsetSecs);
-    int max = int(QTimeZone::MaxUtcOffsetSecs);
+    int min = QTimeZone::MinUtcOffsetSecs;
+    int max = QTimeZone::MaxUtcOffsetSecs;
     QCOMPARE(QTimeZone(min - 1).isValid(), false);
     QCOMPARE(QTimeZone(min).isValid(), true);
     QCOMPARE(QTimeZone(min + 1).isValid(), true);