Replace deprecated calls to chrono

.github/workflows/ci.yml

@@ -3,7 +3,7 @@ name: CI
 on: [push, pull_request]
 
 env:
-  minrust: 1.57.0
+  minrust: 1.61.0
 
 jobs:
   test:

.github/workflows/nightly.yml

@@ -5,7 +5,7 @@ on:
     - cron: '0 2 * * *'
 
 env:
-  minrust: 1.57.0
+  minrust: 1.61.0
 
 jobs:
   test:

Cargo.toml

@@ -7,7 +7,7 @@ readme = "README.md"
 license = "MIT"
 keywords = ["serde", "serialization", "deserialization"]
 edition = "2021"
-rust-version = "1.57"
+rust-version = "1.61"
 repository = "https://github.com/iddm/serde-aux"
 documentation = "https://docs.rs/serde-aux"
 

README.md

@@ -17,6 +17,7 @@ The minimal rust version the library supports:
   - Up to version `3.0.0` (excluding) - rustc `1.36`.
   - Since `3.0.0` - rustc `1.56`.
   - Since `4.3.0` - rustc `1.57`.
+  - Since `4.5.1` - rustc `1.61`.
 
 ## License
 This project is [licensed under the MIT license](https://github.com/iddm/serde-aux/blob/master/LICENSE).

src/field_attributes.rs

@@ -205,15 +205,9 @@ where
 {
     use chrono::prelude::*;
 
-    let number = deserialize_number_from_string::<i64, D>(deserializer)?;
-    let seconds = number / 1000;
-    let millis = (number % 1000) as u32;
-    let nanos = millis * 1_000_000;
-
-    Ok(Utc.from_utc_datetime(
-        &NaiveDateTime::from_timestamp_opt(seconds, nanos)
-            .ok_or_else(|| D::Error::custom("Couldn't parse the timestamp"))?,
-    ))
+    let millis = deserialize_number_from_string::<i64, D>(deserializer)?;
+    DateTime::<Utc>::from_timestamp_millis(millis)
+        .ok_or_else(|| D::Error::custom("Couldn't parse the timestamp"))
 }
 
 /// Deserializes a `chrono::DateTime<Utc>` from a seconds time stamp.
@@ -247,11 +241,8 @@ where
     use chrono::prelude::*;
 
     let seconds = deserialize_number_from_string::<i64, D>(deserializer)?;
-
-    Ok(Utc.from_utc_datetime(
-        &NaiveDateTime::from_timestamp_opt(seconds, 0)
-            .ok_or_else(|| D::Error::custom("Couldn't parse the timestamp"))?,
-    ))
+    DateTime::<Utc>::from_timestamp(seconds, 0)
+        .ok_or_else(|| D::Error::custom("Couldn't parse the timestamp"))
 }
 
 /// Deserializes a number from string or a number.