diff --git a/R/readNWISunit.r b/R/readNWISunit.r
index c22e434ba2042047a7b924845bff4c7c54d65ea4..7478fac7ba442ffb65762394d84f3480ef72fdb0 100644
--- a/R/readNWISunit.r
+++ b/R/readNWISunit.r
@@ -24,6 +24,8 @@
 #' summary(rawData)
 #' rawData2 <- readNWISunit(siteNumber,parameterCd,startDate,endDate,"tsv")
 #' summary(rawData2)
+#' timeZoneChange <- readNWISunit(siteNumber,property,
+#'          "2013-11-03","2013-11-03")
 readNWISunit <- function (siteNumber,parameterCd,startDate,endDate,format="xml"){  
   
   url <- constructNWISURL(siteNumber,parameterCd,startDate,endDate,"uv",format=format)