diff --git a/arch/um/include/common-offsets.h b/arch/um/include/common-offsets.h
index 5469469..0edab69 100644
--- a/arch/um/include/common-offsets.h
+++ b/arch/um/include/common-offsets.h
@@ -34,3 +34,7 @@
 DEFINE(UM_THREAD_SIZE, THREAD_SIZE);
 
 DEFINE(UM_HZ, HZ);
+
+DEFINE(UM_USEC_PER_SEC, USEC_PER_SEC);
+DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC);
+DEFINE(UM_NSEC_PER_USEC, NSEC_PER_USEC);