1 files changed, 50 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Globalization/DaylightTime.cs b/src/mscorlib/shared/System/Globalization/DaylightTime.cs
new file mode 100644
index 0000000000..b3c70e1d10
--- /dev/null
+++ b/src/mscorlib/shared/System/Globalization/DaylightTime.cs
@@ -0,0 +1,50 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+namespace System.Globalization
+{
+    // This class represents a starting/ending time for a period of daylight saving time.
+    [Serializable]
+    public class DaylightTime
+    {
+        private readonly DateTime _start;
+        private readonly DateTime _end;
+        private readonly TimeSpan _delta;
+
+        private DaylightTime()
+        {
+        }
+
+        public DaylightTime(DateTime start, DateTime end, TimeSpan delta)
+        {
+            _start = start;
+            _end = end;
+            _delta = delta;
+        }
+
+        // The start date of a daylight saving period.
+        public DateTime Start => _start;
+
+        // The end date of a daylight saving period.
+        public DateTime End => _end;
+
+        // Delta to stardard offset in ticks.
+        public TimeSpan Delta => _delta;
+    }
+
+    // Value type version of DaylightTime
+    internal struct DaylightTimeStruct
+    {
+        public DaylightTimeStruct(DateTime start, DateTime end, TimeSpan delta)
+        {
+            Start = start;
+            End = end;
+            Delta = delta;
+        }
+
+        public readonly DateTime Start;
+        public readonly DateTime End;
+        public readonly TimeSpan Delta;
+    }
+}