diff --git a/NAMESPACE b/NAMESPACE
index 7a473f0cb99f6261f82a1f03395f375babc3c2bd..dc8481305363622832f63a55d36baa4c1fd24eab 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -15,7 +15,7 @@ export(readNWISpeak)
 export(readNWISqw)
 export(readNWISrating)
 export(readNWISsite)
-export(readNWISunit)
+export(readNWISuv)
 export(readWQPdata)
 export(readWQPqw)
 export(renameColumns)
@@ -26,6 +26,6 @@ export(zeroPad)
 import(RCurl)
 import(XML)
 import(httr)
+import(lubridate)
 import(reshape2)
-importFrom(lubridate,parse_date_time)
 importFrom(plyr,rbind.fill.matrix)
diff --git a/man/importRDB1.Rd b/man/importRDB1.Rd
index f80c8bd53c6ea0b69a77bc725c696e7b498d4440..2d2e830eb9021a117c7aedc970a475755a06ba6c 100644
--- a/man/importRDB1.Rd
+++ b/man/importRDB1.Rd
@@ -26,7 +26,8 @@ data a data frame containing columns agency, site, dateTime (converted to UTC),
 }
 \description{
 This function accepts a url parameter that already contains the desired
-NWIS site, parameter code, statistic, startdate and enddate.
+NWIS site, parameter code, statistic, startdate and enddate. It is not
+recommended to use the RDB format for importing multi-site data.
 }
 \examples{
 siteNumber <- "02177000"
@@ -37,9 +38,9 @@ property <- "00060"
 obs_url <- constructNWISURL(siteNumber,property,
          startDate,endDate,"dv",format="tsv")
 data <- importRDB1(obs_url)
-urlMulti <- constructNWISURL("04085427",c("00060","00010"),
+urlMultiPcodes <- constructNWISURL("04085427",c("00060","00010"),
          startDate,endDate,"dv",statCd=c("00003","00001"),"tsv")
-multiData <- importRDB1(urlMulti)
+multiData <- importRDB1(urlMultiPcodes)
 unitDataURL <- constructNWISURL(siteNumber,property,
          "2013-11-03","2013-11-03","uv",format="tsv") #includes timezone switch
 unitData <- importRDB1(unitDataURL, asDateTime=TRUE)
@@ -47,6 +48,11 @@ qwURL <- constructNWISURL(c('04024430','04024000'),
           c('34247','30234','32104','34220'),
          "2010-11-03","","qw",format="rdb")
 qwData <- importRDB1(qwURL, qw=TRUE, tz="America/Chicago")
+iceSite <- '04024430'
+start <- "2013-11-09"
+end <- "2013-11-28"
+urlIce <- constructNWISURL(iceSite,"00060",start, end,"uv",format="tsv")
+
 # User file:
 filePath <- system.file("extdata", package="dataRetrievaldemo")
 fileName <- "RDB1Example.txt"
diff --git a/man/importWQP.Rd b/man/importWQP.Rd
index 8b9da71e2796a2e843dfa852685156e52ad5e6db..f5faaee1995217faa03d69dece7c73403b126ffa 100644
--- a/man/importWQP.Rd
+++ b/man/importWQP.Rd
@@ -3,12 +3,17 @@
 \alias{importWQP}
 \title{Basic Water Quality Portal Data grabber}
 \usage{
-importWQP(url, zip = FALSE)
+importWQP(url, zip = FALSE, tz = "")
 }
 \arguments{
 \item{url}{string URL to Water Quality Portal#'}
 
 \item{zip}{logical used to request the data in a zip format (TRUE)}
+
+\item{tz}{string to set timezone attribute of datetime. Default is an empty quote, which converts the
+datetimes to UTC (properly accounting for daylight savings times based on the data's provided tz_cd column).
+Possible values to provide are "America/New_York","America/Chicago", "America/Denver","America/Los_Angeles",
+"America/Anchorage","America/Honolulu","America/Jamaica","America/Managua","America/Phoenix", and "America/Metlakatla"}
 }
 \value{
 retval dataframe raw data returned from the Water Quality Portal. Additionally, a POSIXct dateTime column is supplied for
diff --git a/man/readNWISdv.Rd b/man/readNWISdv.Rd
index 13ba233bd15c5b30517c630a637eb9db0b444ff9..203fbbf3187a6d02a59c377ff49702a4c3660368 100644
--- a/man/readNWISdv.Rd
+++ b/man/readNWISdv.Rd
@@ -3,8 +3,8 @@
 \alias{readNWISdv}
 \title{Raw Data Import for USGS NWIS Data}
 \usage{
-readNWISdv(siteNumber, parameterCd, startDate, endDate, statCd = "00003",
-  format = "tsv")
+readNWISdv(siteNumber, parameterCd, startDate = "", endDate = "",
+  statCd = "00003")
 }
 \arguments{
 \item{siteNumber}{string USGS site number.  This is usually an 8 digit number. Multiple sites can be requested with a string vector.}
@@ -16,10 +16,6 @@ readNWISdv(siteNumber, parameterCd, startDate, endDate, statCd = "00003",
 \item{endDate}{string ending date for data retrieval in the form YYYY-MM-DD.}
 
 \item{statCd}{string USGS statistic code. This is usually 5 digits.  Daily mean (00003) is the default.}
-
-\item{format}{string, can be 'tsv' or 'xml', and is only applicable for daily and unit value requests.  'tsv' returns results faster, but there is a possiblitiy that an incomplete file is returned without warning. XML is slower,
-but will offer a warning if the file was incomplete (for example, if there was a momentary problem with the internet connection). It is possible to safely use the 'tsv' option,
-but the user must carefully check the results to see if the data returns matches what is expected. The default is 'tsv'.}
 }
 \value{
 data dataframe with agency, site, dateTime, value, and code columns
@@ -37,8 +33,6 @@ pCode <- '00060'
 rawDailyQ <- readNWISdv(siteNumber,pCode, startDate, endDate)
 rawDailyTemperature <- readNWISdv(siteNumber,'00010',
        startDate, endDate, statCd='00001')
-rawDailyTemperatureTSV <- readNWISdv(siteNumber,'00010',
-       startDate, endDate, statCd='00001',format='tsv')
 rawDailyQAndTempMeanMax <- readNWISdv(siteNumber,c('00010','00060'),
        startDate, endDate, statCd=c('00001','00003'))
 rawDailyMultiSites<- readNWISdv(c("01491000","01645000"),c('00010','00060'),
diff --git a/man/readNWISgwl.Rd b/man/readNWISgwl.Rd
index 4eaf19ed7f99d801e729758378ecc6f5a5d51d15..050dcd208e3e1764cce01f77860d3d7e32c48a6c 100644
--- a/man/readNWISgwl.Rd
+++ b/man/readNWISgwl.Rd
@@ -3,7 +3,7 @@
 \alias{readNWISgwl}
 \title{Reads groundwater level measurements from NWISweb.}
 \usage{
-readNWISgwl(siteNumber, startDate, endDate)
+readNWISgwl(siteNumber, startDate = "", endDate = "")
 }
 \arguments{
 \item{siteNumber}{string USGS site number.  This is usually an 8 digit number}
diff --git a/man/readNWISmeas.Rd b/man/readNWISmeas.Rd
index efac8331fd398ce0abbc7df396f8e624c82ed22b..01e9d9d11edf8aa9cb1fe5efc0ea9a15f1f35d18 100644
--- a/man/readNWISmeas.Rd
+++ b/man/readNWISmeas.Rd
@@ -3,7 +3,7 @@
 \alias{readNWISmeas}
 \title{Reads surface-water measurement data from NWISweb.}
 \usage{
-readNWISmeas(siteNumber, startDate, endDate)
+readNWISmeas(siteNumber, startDate = "", endDate = "", tz = "")
 }
 \arguments{
 \item{siteNumber}{string USGS site number.  This is usually an 8 digit number}
@@ -11,12 +11,17 @@ readNWISmeas(siteNumber, startDate, endDate)
 \item{startDate}{string starting date for data retrieval in the form YYYY-MM-DD.}
 
 \item{endDate}{string ending date for data retrieval in the form YYYY-MM-DD.}
+
+\item{tz}{string to set timezone attribute of datetime. Default is an empty quote, which converts the
+datetimes to UTC (properly accounting for daylight savings times based on the data's provided tz_cd column).
+Possible values to provide are "America/New_York","America/Chicago", "America/Denver","America/Los_Angeles",
+"America/Anchorage","America/Honolulu","America/Jamaica","America/Managua","America/Phoenix", and "America/Metlakatla"}
 }
 \description{
 Reads surface-water measurement data from NWISweb.
 }
 \examples{
 siteNumber <- '01594440'
-data <- readNWISmeas(siteNumber, '','')
+data <- readNWISmeas(siteNumber)
 }
 
diff --git a/man/readNWISpeak.Rd b/man/readNWISpeak.Rd
index 45c0eceba11b88737cc7234e9797cf6501592443..df59298c3d2003319e1b7d7e0e804d11b0602534 100644
--- a/man/readNWISpeak.Rd
+++ b/man/readNWISpeak.Rd
@@ -3,7 +3,7 @@
 \alias{readNWISpeak}
 \title{Reads peak flow data from NWISweb.}
 \usage{
-readNWISpeak(siteNumber, startDate, endDate)
+readNWISpeak(siteNumber, startDate = "", endDate = "")
 }
 \arguments{
 \item{siteNumber}{string USGS site number.  This is usually an 8 digit number}
@@ -17,6 +17,6 @@ Reads peak flow data from NWISweb.
 }
 \examples{
 siteNumber <- '01594440'
-data <- readNWISpeak(siteNumber, '','')
+data <- readNWISpeak(siteNumber)
 }
 
diff --git a/man/readNWISrating.Rd b/man/readNWISrating.Rd
index b93d20bf0e88d1f9ecc82ef500b8279f0cba08ae..88200fb67e217860371172482c969a23ca52cdb0 100644
--- a/man/readNWISrating.Rd
+++ b/man/readNWISrating.Rd
@@ -3,7 +3,7 @@
 \alias{readNWISrating}
 \title{Reads the current rating table for an active USGS streamgage.}
 \usage{
-readNWISrating(siteNumber, type)
+readNWISrating(siteNumber, type = "base")
 }
 \arguments{
 \item{siteNumber}{string USGS site number.  This is usually an 8 digit number}
diff --git a/man/readNWISunit.Rd b/man/readNWISuv.Rd
similarity index 64%
rename from man/readNWISunit.Rd
rename to man/readNWISuv.Rd
index ccd5422870f704de3d46a5a1e6c920bdf6829cd7..9dbc2bef58b61094775dc2661926811919ed106e 100644
--- a/man/readNWISunit.Rd
+++ b/man/readNWISuv.Rd
@@ -1,9 +1,9 @@
 % Generated by roxygen2 (4.0.2): do not edit by hand
-\name{readNWISunit}
-\alias{readNWISunit}
+\name{readNWISuv}
+\alias{readNWISuv}
 \title{Raw Data Import for Instantaneous USGS NWIS Data}
 \usage{
-readNWISunit(siteNumber, parameterCd, startDate, endDate)
+readNWISuv(siteNumber, parameterCd, startDate = "", endDate = "", tz = "")
 }
 \arguments{
 \item{siteNumber}{string USGS site number.  This is usually an 8 digit number}
@@ -13,6 +13,11 @@ readNWISunit(siteNumber, parameterCd, startDate, endDate)
 \item{startDate}{string starting date for data retrieval in the form YYYY-MM-DD.}
 
 \item{endDate}{string ending date for data retrieval in the form YYYY-MM-DD.}
+
+\item{tz}{string to set timezone attribute of datetime. Default is an empty quote, which converts the
+datetimes to UTC (properly accounting for daylight savings times based on the data's provided tz_cd column).
+Possible values to provide are "America/New_York","America/Chicago", "America/Denver","America/Los_Angeles",
+"America/Anchorage","America/Honolulu","America/Jamaica","America/Managua","America/Phoenix", and "America/Metlakatla"}
 }
 \value{
 data dataframe with agency, site, dateTime, time zone, value, and code columns
@@ -28,9 +33,9 @@ parameterCd <- '00060'
 startDate <- "2014-10-10"
 endDate <- "2014-10-10"
 # These examples require an internet connection to run
-rawData <- readNWISunit(siteNumber,parameterCd,startDate,endDate)
+rawData <- readNWISuv(siteNumber,parameterCd,startDate,endDate)
 
-timeZoneChange <- readNWISunit(c('04024430','04024000'),parameterCd,
+timeZoneChange <- readNWISuv(c('04024430','04024000'),parameterCd,
          "2013-11-03","2013-11-03")
 firstSite <- timeZoneChange[timeZoneChange$site_no == '04024430',]
 }