diff --git a/R/label-date.R b/R/label-date.R
index 730fb7b5..0a64e177 100644
--- a/R/label-date.R
+++ b/R/label-date.R
@@ -8,7 +8,7 @@
 #' "firsts" (e.g. first day of month, first day of day) specially;
 #' `date_short()` formats changes (e.g. new month, new year) specially.
 #' `label_timespan()` is intended to show time passed and adds common time units
-#' suffix to the input (ns, µs, ms, s, m, h, d, w).
+#' suffix to the input (ns, `r "\u03BC"`s, ms, s, m, h, d, w).
 #'
 #' @inherit label_number return
 #' @param format For `date_format()` and `time_format()` a date/time format
@@ -131,7 +131,7 @@ label_timespan <- function(unit = c("secs", "mins", "hours", "days", "weeks"),
       scale_cut = c(
         0,
         "ns" = 1e-9,
-        "µs" = 1e-6,
+        "\u03BCs" = 1e-6,
         "ms" = 1e-3,
         "s" = 1,
         "m" = 60,
diff --git a/R/trans-date.R b/R/trans-date.R
index 7bf67874..9a17ce0c 100644
--- a/R/trans-date.R
+++ b/R/trans-date.R
@@ -66,6 +66,7 @@ time_trans <- function(tz = NULL) {
 #' the range of the data. `hms_trans()` provides the same but using standard hms
 #' idioms and formatting.
 #'
+#' @inheritParams label_timespan
 #' @export
 #' @examples
 #' # timespan_trans allows you to specify the time unit numeric data is
diff --git a/man/label_date.Rd b/man/label_date.Rd
index eb00a960..9c510d4a 100644
--- a/man/label_date.Rd
+++ b/man/label_date.Rd
@@ -89,7 +89,7 @@ but uses a slightly different approach: \code{ConciseDateFormatter} formats
 "firsts" (e.g. first day of month, first day of day) specially;
 \code{date_short()} formats changes (e.g. new month, new year) specially.
 \code{label_timespan()} is intended to show time passed and adds common time units
-suffix to the input (ns, µs, ms, s, m, h, d, w).
+suffix to the input (ns, μs, ms, s, m, h, d, w).
 }
 \examples{
 date_range <- function(start, days) {
diff --git a/man/timespan_trans.Rd b/man/timespan_trans.Rd
index adc94257..6ead6f0d 100644
--- a/man/timespan_trans.Rd
+++ b/man/timespan_trans.Rd
@@ -9,6 +9,9 @@ timespan_trans(unit = c("secs", "mins", "hours", "days", "weeks"))
 
 hms_trans()
 }
+\arguments{
+\item{unit}{The unit used to interpret numeric input}
+}
 \description{
 \code{timespan_trans()} provides transformations for data encoding time passed
 along with breaks and label formatting showing standard unit of time fitting