diff --git a/lib/slasubs.f b/lib/slasubs.f
index 16081f28b..30ba6dd84 100644
--- a/lib/slasubs.f
+++ b/lib/slasubs.f
@@ -158,6 +158,10 @@
 *  preamble comments appropriately.           *
 * - - - - - - - - - - - - - - - - - - - - - - *
 
+*     2017 January 1
+      ELSE IF (UTC.GE.57754D0) THEN
+         DT=37D0
+
 *     2015 July 1
       ELSE IF (UTC.GE.57204D0) THEN
          DT=36D0