diff --git a/DESCRIPTION b/DESCRIPTION
index e10541a8aaee81b51b0a27ea1166ca080a5dc217..4bf3f3c577ec19892449d740461208b780b58e7a 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: SGLdataGrabber
 Title: Grab available data from EPTB Seine Grands Lacs web site
-Version: 0.1.1
+Version: 0.1.2
 Authors@R: 
     person(given = "David",
            family = "Dorchies",
diff --git a/R/sgl.R b/R/sgl.R
index 39631cefeaaab57140eb80ea06e1a02f3d97dd77..fb6bbe42327aeaf36b3a22cb0808517746c5d3fd 100644
--- a/R/sgl.R
+++ b/R/sgl.R
@@ -43,7 +43,7 @@ SGL_GrabVariableListAll <- function(
 #'
 #' @param URL Complete URL of the data source.
 #'
-#' @return A dataframe containing stata time series with 2 columns: `datetime` (Unix timestamp format) and `value`.
+#' @return A dataframe containing stata time series with 2 columns: `datetime` ([character] format "YYYY-MM-DDThh:mm") and [numeric] `value`.
 #' @export
 #'
 #' @import httr
diff --git a/R/thingsboard.R b/R/thingsboard.R
index 2369ba35d5260097a1cea86dc0699f40b5bf49d6..5450c1d251db0151bbe8e7cc63a744c831a9971b 100644
--- a/R/thingsboard.R
+++ b/R/thingsboard.R
@@ -16,7 +16,7 @@
 #' )
 #' }
 thingsboard_UploadTelemetry <- function(URL, dfData) {
-  dfData$datetime <- paste0(format(dfData$datetime), "000")
+  dfData$datetime <- paste0(format(as.numeric(as.POSIXct(dfData$datetime))), "000")
   lData <- split(dfData, dfData$datetime)
   lapply(X = lData, FUN = thingsboard_UploadTimeStep, URL)
 }