diff --git a/Cargo.lock b/Cargo.lock
index 64073ea..50660b3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -224,6 +224,21 @@ dependencies = [
  "alloc-no-stdlib",
 ]
 
+[[package]]
+name = "android-tzdata"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e999941b234f3131b00bc13c22d06e8c5ff726d1b6318ac7eb276997bbb4fef0"
+
+[[package]]
+name = "android_system_properties"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.5.0"
@@ -335,6 +350,20 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9555578bc9e57714c812a1f84e4fc5b4d21fcb063490c624de019f7464c91268"
 
+[[package]]
+name = "chrono"
+version = "0.4.41"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c469d952047f47f91b68d1cba3f10d63c11d73e4636f24f08daf0278abf01c4d"
+dependencies = [
+ "android-tzdata",
+ "iana-time-zone",
+ "js-sys",
+ "num-traits",
+ "wasm-bindgen",
+ "windows-link",
+]
+
 [[package]]
 name = "colored"
 version = "3.0.0"
@@ -346,9 +375,9 @@ dependencies = [
 
 [[package]]
 name = "config"
-version = "0.15.11"
+version = "0.15.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "595aae20e65c3be792d05818e8c63025294ac3cb7e200f11459063a352a6ef80"
+checksum = "5b1eb4fb07bc7f012422df02766c7bd5971effb894f573865642f06fa3265440"
 dependencies = [
  "pathdiff",
  "serde",
@@ -367,6 +396,12 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.17"
@@ -736,6 +771,30 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
 
+[[package]]
+name = "iana-time-zone"
+version = "0.1.63"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0c919e5debc312ad217002b8048a17b7d83f80703865bbfcfebb0458b0b27d8"
+dependencies = [
+ "android_system_properties",
+ "core-foundation-sys",
+ "iana-time-zone-haiku",
+ "js-sys",
+ "log",
+ "wasm-bindgen",
+ "windows-core",
+]
+
+[[package]]
+name = "iana-time-zone-haiku"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f31827a206f56af32e590ba56d5d2d085f558508192593743f16b2306495269f"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "icu_collections"
 version = "2.0.0"
@@ -1047,6 +1106,15 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
 
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "object"
 version = "0.36.7"
@@ -1070,9 +1138,10 @@ checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
 [[package]]
 name = "pagetop"
-version = "0.0.5"
+version = "0.0.6"
 dependencies = [
  "actix-web",
+ "chrono",
  "colored",
  "config",
  "figlet-rs",
@@ -1443,9 +1512,9 @@ dependencies = [
 
 [[package]]
 name = "serde_spanned"
-version = "0.6.9"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf41e0cfaf7226dca15e8197172c295a782857fcb97fad1808a166870dee75a3"
+checksum = "40734c41988f7306bb04f0ecf60ec0f3f1caa34290e4e8ea471dcd3346483b83"
 dependencies = [
  "serde",
 ]
@@ -1677,14 +1746,15 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.8.23"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc1beb996b9d83529a9e75c17a1686767d148d70663143c7854d8b4a09ced362"
+checksum = "f271e09bde39ab52250160a67e88577e0559ad77e9085de6e9051a2c4353f8f8"
 dependencies = [
  "serde",
  "serde_spanned",
- "toml_datetime",
- "toml_edit",
+ "toml_datetime 0.7.0",
+ "toml_parser",
+ "winnow",
 ]
 
 [[package]]
@@ -1692,6 +1762,12 @@ name = "toml_datetime"
 version = "0.6.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22cddaf88f4fbc13c51aebbf5f8eceb5c7c5a9da2ac40a13519eb5b0a0e8f11c"
+
+[[package]]
+name = "toml_datetime"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bade1c3e902f58d73d3f294cd7f20391c1cb2fbcb643b73566bc773971df91e3"
 dependencies = [
  "serde",
 ]
@@ -1703,9 +1779,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41fe8c660ae4257887cf66394862d21dbca4a6ddd26f04a3560410406a2f819a"
 dependencies = [
  "indexmap",
- "serde",
- "serde_spanned",
- "toml_datetime",
+ "toml_datetime 0.6.11",
+ "winnow",
+]
+
+[[package]]
+name = "toml_parser"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5c1c469eda89749d2230d8156a5969a69ffe0d6d01200581cdc6110674d293e"
+dependencies = [
  "winnow",
 ]
 
@@ -2033,6 +2116,65 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-core"
+version = "0.61.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0fdd3ddb90610c7638aa2b3a3ab2904fb9e5cdbecc643ddb3647212781c4ae3"
+dependencies = [
+ "windows-implement",
+ "windows-interface",
+ "windows-link",
+ "windows-result",
+ "windows-strings",
+]
+
+[[package]]
+name = "windows-implement"
+version = "0.60.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a47fddd13af08290e67f4acabf4b459f647552718f683a7b415d290ac744a836"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "windows-interface"
+version = "0.59.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd9211b69f8dcdfa817bfd14bf1c97c9188afa36f4750130fcdf3f400eca9fa8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "windows-link"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e6ad25900d524eaabdbbb96d20b4311e1e7ae1699af4fb28c17ae66c80d798a"
+
+[[package]]
+name = "windows-result"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56f42bd332cc6c8eac5af113fc0c1fd6a8fd2aa08a0119358686e5160d0586c6"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
+name = "windows-strings"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56e6c93f3a0c3b36176cb1327a4958a0353d5d166c2a35cb268ace15e91d3b57"
+dependencies = [
+ "windows-link",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
diff --git a/Cargo.toml b/Cargo.toml
index bcf1fd5..c2cfbd5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pagetop"
-version = "0.0.5"
+version = "0.0.6"
 edition = "2021"
 
 description = """\
@@ -15,8 +15,9 @@ license.workspace = true
 authors.workspace = true
 
 [dependencies]
+chrono = "0.4.41"
 colored = "3.0.0"
-config = { version = "0.15.11", default-features = false, features = ["toml"] }
+config = { version = "0.15.13", default-features = false, features = ["toml"] }
 figlet-rs = "0.1.5"
 itoa = "1.0.15"
 serde.workspace = true
diff --git a/src/datetime.rs b/src/datetime.rs
new file mode 100644
index 0000000..2e8b622
--- /dev/null
+++ b/src/datetime.rs
@@ -0,0 +1,4 @@
+//! Soporte a fechas y horas según estándar [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601)
+//! (basado en [chrono](https://docs.rs/chrono)).
+
+pub use chrono::prelude::*;
diff --git a/src/lib.rs b/src/lib.rs
index 07b9934..d7a97e2 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -48,6 +48,8 @@ pub mod trace;
 pub mod html;
 // Localización.
 pub mod locale;
+// Soporte a fechas y horas.
+pub mod datetime;
 // Gestión del servidor y servicios web.
 pub mod service;
 // Prepara y ejecuta la aplicación.
diff --git a/src/prelude.rs b/src/prelude.rs
index af29d37..cc38877 100644
--- a/src/prelude.rs
+++ b/src/prelude.rs
@@ -27,6 +27,8 @@ pub use crate::html::*;
 
 pub use crate::locale::*;
 
+pub use crate::datetime::*;
+
 pub use crate::service;
 
 pub use crate::app::Application;