diff --git a/src/utils/dateutils/dates.rs b/src/utils/dateutils/dates.rs
index 2fa6f7f..a5b3481 100644
--- a/src/utils/dateutils/dates.rs
+++ b/src/utils/dateutils/dates.rs
@@ -1,3 +1,10 @@
+//! Generation and manipulation of calendar date sequences.
+//!
+//! ```
+//! use rustframe::utils::dateutils::dates::{DateFreq, DatesList};
+//! let list = DatesList::new("2024-01-01".into(), "2024-01-03".into(), DateFreq::Daily);
+//! assert_eq!(list.count().unwrap(), 3);
+//! ```
 use chrono::{Datelike, Duration, NaiveDate, Weekday};
 use std::collections::HashMap;
 use std::error::Error;
diff --git a/src/utils/dateutils/mod.rs b/src/utils/dateutils/mod.rs
index 53ea47c..237d8e0 100644
--- a/src/utils/dateutils/mod.rs
+++ b/src/utils/dateutils/mod.rs
@@ -1,3 +1,13 @@
+//! Generators for sequences of calendar and business dates.
+//!
+//! See [`dates`] for all-day calendars and [`bdates`] for business-day aware
+//! variants.
+//!
+//! ```
+//! use rustframe::utils::dateutils::{DatesList, DateFreq};
+//! let list = DatesList::new("2024-01-01".into(), "2024-01-02".into(), DateFreq::Daily);
+//! assert_eq!(list.count().unwrap(), 2);
+//! ```
 pub mod bdates;
 pub mod dates;
 
diff --git a/src/utils/mod.rs b/src/utils/mod.rs
index e00de87..ef448cc 100644
--- a/src/utils/mod.rs
+++ b/src/utils/mod.rs
@@ -1,3 +1,14 @@
+//! Assorted helper utilities.
+//!
+//! Currently this module exposes date generation utilities in [`dateutils`](crate::utils::dateutils),
+//! including calendar and business date sequences.
+//!
+//! ```
+//! use rustframe::utils::DatesList;
+//! use rustframe::utils::DateFreq;
+//! let dates = DatesList::new("2024-01-01".into(), "2024-01-03".into(), DateFreq::Daily);
+//! assert_eq!(dates.count().unwrap(), 3);
+//! ```
 pub mod dateutils;
 
 pub use dateutils::{BDateFreq, BDatesGenerator, BDatesList};