diff --git a/ChangeLog b/ChangeLog
index 5b1dfa974..85e2b2b68 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-02-06  Mike Kestner  <mkestner@ximian.com>
+
+	* glib/time_t_CustomMarshaler.cs : use TimeSpan.TotalSeconds, not
+	TimeSpan.Seconds.
+
 2004-02-06  John Luke  <jluke@cfl.rr.com>
 
 	* gtk/Gtk.metadata: hide unneeded RadioMenuItem ctors
diff --git a/glib/time_t_CustomMarshaler.cs b/glib/time_t_CustomMarshaler.cs
index 5f18d37e8..6158122c3 100644
--- a/glib/time_t_CustomMarshaler.cs
+++ b/glib/time_t_CustomMarshaler.cs
@@ -17,7 +17,7 @@ namespace GLib {
 
 		private time_t_CustomMarshaler () 
 		{
-			utc_offset = DateTime.Now.Subtract (DateTime.UtcNow).Seconds;
+			utc_offset = (int) DateTime.Now.Subtract (DateTime.UtcNow).TotalSeconds;
 			local_epoch = new DateTime (1970, 1, 1, 0, 0, 0);
 		}
 
@@ -35,7 +35,7 @@ namespace GLib {
 			int size = Marshal.SizeOf (typeof (int)) + GetNativeDataSize ();
 			IntPtr ptr = Marshal.AllocCoTaskMem (size);
 			IntPtr time_t_ptr = new IntPtr (ptr.ToInt32 () + Marshal.SizeOf (typeof(int)));
-			int secs = dt.Subtract (local_epoch).Seconds + utc_offset;
+			int secs = ((int)dt.Subtract (local_epoch).TotalSeconds) + utc_offset;
 			if (GetNativeDataSize () == 4)
 				Marshal.WriteInt32 (time_t_ptr, secs);
 			else if (GetNativeDataSize () == 8)