diff --git a/affluences-api/src/lib.rs b/affluences-api/src/lib.rs
index 6f7bbbc..c4b5ad8 100644
--- a/affluences-api/src/lib.rs
+++ b/affluences-api/src/lib.rs
@@ -1,6 +1,6 @@
 mod models;
 
-use chrono::{NaiveDate, NaiveDateTime};
+use chrono::NaiveDate;
 use models::{Resource, Data, SiteData, Reservation, ReservationResponse};
 
 const USER_AGENT: &str = "User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/112.0";
diff --git a/affluences-api/src/models.rs b/affluences-api/src/models.rs
index 43f93ca..01ba2f9 100644
--- a/affluences-api/src/models.rs
+++ b/affluences-api/src/models.rs
@@ -1,9 +1,38 @@
 use serde::{Deserialize, Serialize};
 use chrono::{NaiveTime, NaiveDate};
 
+mod time_format {
+    use chrono::NaiveTime;
+    use serde::{self, Deserialize, Serializer, Deserializer};
+
+    const FORMAT: &'static str = "%H:%M";
+
+    pub fn serialize<S>(
+        time: &NaiveTime,
+        serializer: S,
+    ) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        let s = format!("{}", time.format(FORMAT));
+        serializer.serialize_str(&s)
+    }
+
+    pub fn deserialize<'de, D>(
+        deserializer: D,
+    ) -> Result<NaiveTime, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+        NaiveTime::parse_from_str(&s, FORMAT).map_err(serde::de::Error::custom)
+    }
+}
+
 #[derive(Deserialize, Debug)]
 pub struct Hour {
-    pub hour: String,
+    #[serde(with = "time_format")]
+    pub hour: NaiveTime,
     pub state: u32,
     // reservations
     pub granularity: u32,
@@ -87,34 +116,6 @@ pub struct SiteDataNotice {
     pub url: Option<String>
 }
 
-#[derive(Deserialize, Debug)]
-pub struct SiteDataChild {
-    pub id: uuid::Uuid,
-    pub slug: String,
-    pub parent: Option<String>,
-    pub primary_name: String,
-    pub secondary_name: String,
-    pub concat_name: String,
-    pub categories: Vec<SiteDataCategory>,
-    pub time_zone: String,
-    pub location: SiteDataLocation,
-    pub phone_number: String,
-    pub email: String,
-    pub url: String,
-    pub notices: Vec<SiteDataNotice>,
-    // messages
-    pub estimated_distance: f64,
-    pub current_forecast: SiteDataForecast,
-    pub today_forecasts: Vec<SiteDataForecast>,
-    // events
-    // children
-    // actions
-    // services
-    // infos
-    pub poster_image: String,
-    // images
-}
-
 #[derive(Deserialize, Debug)]
 pub struct SiteDataService {
     pub id: u64,
@@ -179,8 +180,10 @@ pub struct Reservation {
     pub auth_type: Option<String>,
     pub email: String,
     pub date: NaiveDate,
-    pub start_time: String,
-    pub end_time: String,
+    #[serde(with = "time_format")]
+    pub start_time: NaiveTime,
+    #[serde(with = "time_format")]
+    pub end_time: NaiveTime,
     pub note: String,
     pub user_firstname: String,
     pub user_lastname: String,