diff --git a/NAMESPACE b/NAMESPACE
index d8593b196..c7193bfa4 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -211,9 +211,9 @@ S3method(names,RPolarsDataFrame)
 S3method(names,RPolarsGroupBy)
 S3method(names,RPolarsLazyFrame)
 S3method(names,RPolarsLazyGroupBy)
-S3method(parse_string_as_polars_duration,character)
-S3method(parse_string_as_polars_duration,default)
-S3method(parse_string_as_polars_duration,difftime)
+S3method(parse_as_polars_duration_string,character)
+S3method(parse_as_polars_duration_string,default)
+S3method(parse_as_polars_duration_string,difftime)
 S3method(plain,RPolarsErr)
 S3method(plain,character)
 S3method(plain,default)
diff --git a/R/dataframe__frame.R b/R/dataframe__frame.R
index d2280a07d..724b690e9 100644
--- a/R/dataframe__frame.R
+++ b/R/dataframe__frame.R
@@ -2216,9 +2216,9 @@ DataFrame_group_by_dynamic = function(
     group_by = NULL,
     start_by = "window",
     check_sorted = TRUE) {
-  every = parse_string_as_polars_duration(every)
-  offset = parse_string_as_polars_duration(offset) %||% paste0("-", every)
-  period = parse_string_as_polars_duration(period) %||% every
+  every = parse_as_polars_duration_string(every)
+  offset = parse_as_polars_duration_string(offset) %||% paste0("-", every)
+  period = parse_as_polars_duration_string(period) %||% every
   construct_group_by_dynamic(
     self, index_column, every, period, offset, include_boundaries, closed, label,
     group_by, start_by, check_sorted
diff --git a/R/expr__datetime.R b/R/expr__datetime.R
index 0818e6164..72e9c49f8 100644
--- a/R/expr__datetime.R
+++ b/R/expr__datetime.R
@@ -34,7 +34,7 @@
 #' )
 #' df
 ExprDT_truncate = function(every, offset = NULL) {
-  offset = parse_string_as_polars_duration(offset, default = "0ns")
+  offset = parse_as_polars_duration_string(offset, default = "0ns")
   .pr$Expr$dt_truncate(self, every, offset) |>
     unwrap("in $dt$truncate()")
 }
@@ -83,8 +83,8 @@ ExprDT_truncate = function(every, offset = NULL) {
 #' )
 #' df
 ExprDT_round = function(every, offset = NULL) {
-  every = parse_string_as_polars_duration(every, default = "0ns")
-  offset = parse_string_as_polars_duration(offset, default = "0ns")
+  every = parse_as_polars_duration_string(every, default = "0ns")
+  offset = parse_as_polars_duration_string(offset, default = "0ns")
   .pr$Expr$dt_round(self, every, offset) |>
     unwrap("in $dt$round()")
 }
diff --git a/R/functions__eager.R b/R/functions__eager.R
index 69b18e688..8c707d2e2 100644
--- a/R/functions__eager.R
+++ b/R/functions__eager.R
@@ -216,7 +216,7 @@ pl_date_range = function(
     time_zone = NULL) {
   .warn_for_deprecated_date_range_use(start, end, interval, time_unit, time_zone)
 
-  interval = parse_string_as_polars_duration(interval)
+  interval = parse_as_polars_duration_string(interval)
   date_range(start, end, interval, closed, time_unit, time_zone) |>
     unwrap("in pl$date_range():")
 }
@@ -294,7 +294,7 @@ pl_date_ranges = function(
     time_zone = NULL) {
   .warn_for_deprecated_date_range_use(start, end, interval, time_unit, time_zone)
 
-  interval = parse_string_as_polars_duration(interval)
+  interval = parse_as_polars_duration_string(interval)
   date_ranges(start, end, interval, closed, time_unit, time_zone) |>
     unwrap("in pl$date_ranges():")
 }
@@ -344,7 +344,7 @@ pl_datetime_range = function(
     closed = "both",
     time_unit = NULL,
     time_zone = NULL) {
-  interval = parse_string_as_polars_duration(interval)
+  interval = parse_as_polars_duration_string(interval)
   datetime_range(start, end, interval, closed, time_unit, time_zone) |>
     unwrap("in pl$datetime_range():")
 }
@@ -386,7 +386,7 @@ pl_datetime_ranges = function(
     closed = "both",
     time_unit = NULL,
     time_zone = NULL) {
-  interval = parse_string_as_polars_duration(interval)
+  interval = parse_as_polars_duration_string(interval)
   datetime_ranges(start, end, interval, closed, time_unit, time_zone) |>
     unwrap("in pl$datetimes_ranges():")
 }
diff --git a/R/lazyframe__lazy.R b/R/lazyframe__lazy.R
index e3c936c32..b2921823f 100644
--- a/R/lazyframe__lazy.R
+++ b/R/lazyframe__lazy.R
@@ -2025,9 +2025,9 @@ LazyFrame_group_by_dynamic = function(
     group_by = NULL,
     start_by = "window",
     check_sorted = TRUE) {
-  every = parse_string_as_polars_duration(every)
-  offset = parse_string_as_polars_duration(offset) %||% paste0("-", every)
-  period = parse_string_as_polars_duration(period) %||% every
+  every = parse_as_polars_duration_string(every)
+  offset = parse_as_polars_duration_string(offset) %||% paste0("-", every)
+  period = parse_as_polars_duration_string(period) %||% every
 
   .pr$LazyFrame$group_by_dynamic(
     self, index_column, every, period, offset, label, include_boundaries, closed,
diff --git a/R/parse_as_duration.R b/R/parse_as_duration.R
index 49724fa00..f06aec60d 100644
--- a/R/parse_as_duration.R
+++ b/R/parse_as_duration.R
@@ -39,26 +39,26 @@ NULL
 #' @noRd
 #' @examples
 #' # A single character is passed as is
-#' parse_string_as_polars_duration("1d")
+#' parse_as_polars_duration_string("1d")
 #'
 #' # A single difftime is converted to a duration string
-#' parse_string_as_polars_duration(as.difftime(1, units = "days"))
-parse_string_as_polars_duration = function(x, default = NULL, ...) {
+#' parse_as_polars_duration_string(as.difftime(1, units = "days"))
+parse_as_polars_duration_string = function(x, default = NULL, ...) {
   if (is.null(x)) {
     return(default)
   }
-  UseMethod("parse_string_as_polars_duration")
+  UseMethod("parse_as_polars_duration_string")
 }
 
 #' @exportS3Method
-parse_string_as_polars_duration.default = function(x, default = NULL, ...) {
+parse_as_polars_duration_string.default = function(x, default = NULL, ...) {
   Err_plain(paste0("`", deparse(substitute(x)), "` must be a single non-NA character or difftime.")) |>
     unwrap()
 }
 
 
 #' @exportS3Method
-parse_string_as_polars_duration.character = function(x, default = NULL, ...) {
+parse_as_polars_duration_string.character = function(x, default = NULL, ...) {
   if (length(x) != 1L || is.na(x)) {
     Err_plain(paste0("`", deparse(substitute(x)), "` must be a single non-NA character or difftime.")) |>
       unwrap()
@@ -69,7 +69,7 @@ parse_string_as_polars_duration.character = function(x, default = NULL, ...) {
 
 
 #' @exportS3Method
-parse_string_as_polars_duration.difftime = function(x, default = NULL, ...) {
+parse_as_polars_duration_string.difftime = function(x, default = NULL, ...) {
   if (length(x) != 1L || is.na(x)) {
     Err_plain(paste0("`", deparse(substitute(x)), "` must be a single non-NA character or difftime.")) |>
       unwrap()