diff --git a/Cargo.lock b/Cargo.lock
index 26839198..24a247a5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -223,18 +223,17 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
-version = "0.4.26"
+version = "0.4.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec837a71355b28f6556dbd569b37b3f363091c0bd4b2e735674521b4c5fd9bc5"
+checksum = "7f2c685bad3eb3d45a01354cedb7d5faa66194d1d58ba6e267a8de788f79db38"
 dependencies = [
  "android-tzdata",
  "iana-time-zone",
  "js-sys",
  "num-traits",
  "serde",
- "time 0.1.45",
  "wasm-bindgen",
- "winapi",
+ "windows-targets 0.48.0",
 ]
 
 [[package]]
@@ -654,7 +653,7 @@ checksum = "c85e1d9ab2eadba7e5040d4e09cbd6d072b76a557ad64e797c2cb9d4da21d7e4"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi",
 ]
 
 [[package]]
@@ -1044,7 +1043,7 @@ checksum = "eebffdb73fe72e917997fad08bdbf31ac50b0fa91cec93e69a0662e4264d454c"
 dependencies = [
  "libc",
  "log",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi",
  "windows-sys 0.48.0",
 ]
 
@@ -1583,7 +1582,7 @@ dependencies = [
  "serde",
  "serde_json",
  "serde_with_macros",
- "time 0.3.21",
+ "time",
 ]
 
 [[package]]
@@ -1819,17 +1818,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "time"
-version = "0.1.45"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b797afad3f312d1c66a56d11d0316f916356d11bd158fbc6ca6389ff6bf805a"
-dependencies = [
- "libc",
- "wasi 0.10.0+wasi-snapshot-preview1",
- "winapi",
-]
-
 [[package]]
 name = "time"
 version = "0.3.21"
@@ -2054,12 +2042,6 @@ dependencies = [
  "try-lock",
 ]
 
-[[package]]
-name = "wasi"
-version = "0.10.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
-
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
diff --git a/src/configuration/mod.rs b/src/configuration/mod.rs
index f23399d6..a277cf99 100644
--- a/src/configuration/mod.rs
+++ b/src/configuration/mod.rs
@@ -183,9 +183,13 @@ mod tests {
                     start: crate::location::Location {
                         coord: geo::coord! { x: -78.4987, y: 40.0157 },
                         altitude: None,
-                        time: chrono::Local
-                            .datetime_from_str("2022-03-05 10:36:00", &crate::DATETIME_FORMAT)
-                            .unwrap()
+                        time: chrono::NaiveDateTime::parse_from_str(
+                            "2022-03-05 10:36:00",
+                            &crate::DATETIME_FORMAT
+                        )
+                        .unwrap()
+                        .and_local_timezone(chrono::Local)
+                        .unwrap()
                     },
                     profile: crate::configuration::prediction::StandardProfile {
                         ascent_rate: 6.5,
diff --git a/src/location/aprs.rs b/src/location/aprs.rs
index 594281a9..82bec62b 100644
--- a/src/location/aprs.rs
+++ b/src/location/aprs.rs
@@ -99,7 +99,7 @@ impl crate::location::BalloonLocation {
                                 naive_packet_time = now.naive_utc();
                             }
                         }
-                        packet_time = chrono::DateTime::<chrono::Utc>::from_utc(
+                        packet_time = chrono::DateTime::<chrono::Utc>::from_naive_utc_and_offset(
                             naive_packet_time,
                             chrono::Utc,
                         )
@@ -289,7 +289,7 @@ mod tests {
 
         assert_eq!(
             packet.location.time,
-            chrono::DateTime::<chrono::Local>::from_utc(
+            chrono::DateTime::<chrono::Local>::from_naive_utc_and_offset(
                 chrono::Utc::now()
                     .date_naive()
                     .and_hms_opt(7, 48, 49)
diff --git a/src/utilities.rs b/src/utilities.rs
index 64b2a1a2..e1c697da 100644
--- a/src/utilities.rs
+++ b/src/utilities.rs
@@ -4,7 +4,6 @@ pub fn approx_equal(a: f64, b: f64, decimal_precision: u8) -> bool {
 }
 
 pub mod optional_local_datetime_string {
-    use chrono::TimeZone;
     use serde::Deserialize;
 
     const FORMAT: &str = "%Y-%m-%d %H:%M:%S";
@@ -32,8 +31,8 @@ pub mod optional_local_datetime_string {
         if let Some(value) = value {
             return Ok(Some(match chrono::DateTime::parse_from_rfc3339(&value) {
                 Ok(datetime) => datetime.with_timezone(&chrono::Local),
-                Err(_) => match chrono::Local.datetime_from_str(&value, FORMAT) {
-                    Ok(datetime) => datetime,
+                Err(_) => match chrono::NaiveDateTime::parse_from_str(&value, FORMAT) {
+                    Ok(datetime) => datetime.and_local_timezone(chrono::Local).unwrap(),
                     Err(_) => chrono::NaiveDate::parse_from_str(&value, "%Y-%m-%d")
                         .map_err(serde::de::Error::custom)?
                         .and_hms_opt(0, 0, 0)
@@ -49,7 +48,6 @@ pub mod optional_local_datetime_string {
 }
 
 pub mod local_datetime_string {
-    use chrono::TimeZone;
     use serde::Deserialize;
 
     const FORMAT: &str = "%Y-%m-%d %H:%M:%S";
@@ -72,10 +70,10 @@ pub mod local_datetime_string {
         let value: String = String::deserialize(deserializer)?;
         Ok(match chrono::DateTime::parse_from_rfc3339(&value) {
             Ok(datetime) => datetime.with_timezone(&chrono::Local),
-            Err(_) => match chrono::DateTime::parse_from_str(&value, "%Y-%m-%d %H:%M:%S %Z") {
-                Ok(datetime) => datetime.with_timezone(&chrono::Local),
-                Err(_) => match chrono::Local.datetime_from_str(&value, FORMAT) {
-                    Ok(datetime) => datetime,
+            Err(_) => match chrono::NaiveDateTime::parse_from_str(&value, "%Y-%m-%d %H:%M:%S %Z") {
+                Ok(datetime) => datetime.and_local_timezone(chrono::Local).unwrap(),
+                Err(_) => match chrono::NaiveDateTime::parse_from_str(&value, FORMAT) {
+                    Ok(datetime) => datetime.and_local_timezone(chrono::Local).unwrap(),
                     Err(_) => chrono::NaiveDate::parse_from_str(&value, "%Y-%m-%d")
                         .map_err(serde::de::Error::custom)?
                         .and_hms_opt(0, 0, 0)