diff --git a/Cargo.lock b/Cargo.lock
index fa1e014bd..9107b4822 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -179,9 +179,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
-version = "0.4.22"
+version = "0.4.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfd4d1b31faaa3a89d7934dbded3111da0d2ef28e3ebccdb4f0179f5929d1ef1"
+checksum = "16b0a3d9ed01224b22057780a37bb8c5dbfe1be8ba48678e7bf57ec4b385411f"
 dependencies = [
  "iana-time-zone",
  "num-integer",
diff --git a/Cargo.toml b/Cargo.toml
index 206fb3c31..8435cb726 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ members = ["lib"]
 
 [dependencies]
 atty = "0.2.14"
-chrono = { version = "0.4.22", default-features = false, features = ["std", "clock"] }
+chrono = { version = "0.4.23", default-features = false, features = ["std", "clock"] }
 clap = { version = "4.0.23", features = ["derive", "deprecated"] }
 clap_complete = "4.0.5"
 clap_mangen = "0.2.4"
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index fbe72c9bd..a5ad49f92 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -22,7 +22,7 @@ backoff = "0.4.0"
 blake2 = "0.10.5"
 bytes = "1.2.1"
 byteorder = "1.4.3"
-chrono = { version = "0.4.22", default-features = false, features = ["std", "clock"] }
+chrono = { version = "0.4.23", default-features = false, features = ["std", "clock"] }
 config = { version = "0.13.2", default-features = false, features = ["toml"] }
 digest = "0.10.5"
 git2 = "0.15.0"
diff --git a/src/commands.rs b/src/commands.rs
index 702e77f38..f64c66c9a 100644
--- a/src/commands.rs
+++ b/src/commands.rs
@@ -23,7 +23,7 @@ use std::sync::{Arc, Mutex};
 use std::time::Instant;
 use std::{fs, io};
 
-use chrono::{FixedOffset, TimeZone, Utc};
+use chrono::{FixedOffset, LocalResult, TimeZone, Utc};
 use clap::{ArgGroup, ArgMatches, CommandFactory, FromArgMatches, Subcommand};
 use itertools::Itertools;
 use jujutsu_lib::backend::{BackendError, CommitId, Timestamp, TreeValue};
@@ -3537,14 +3537,24 @@ fn cmd_debug(
     Ok(())
 }
 
+// TODO: Move this somewhere where it can be reused by
+// `template_parser::SignatureTimestamp`.
 fn format_timestamp(timestamp: &Timestamp) -> String {
-    let utc = Utc
-        .timestamp(
-            timestamp.timestamp.0.div_euclid(1000),
-            (timestamp.timestamp.0.rem_euclid(1000)) as u32 * 1000000,
-        )
-        .with_timezone(&FixedOffset::east(timestamp.tz_offset * 60));
-    utc.format("%Y-%m-%d %H:%M:%S.%3f %:z").to_string()
+    let utc = match Utc.timestamp_opt(
+        timestamp.timestamp.0.div_euclid(1000),
+        (timestamp.timestamp.0.rem_euclid(1000)) as u32 * 1000000,
+    ) {
+        LocalResult::None => {
+            return "<out-of-range date>".to_string();
+        }
+        LocalResult::Single(x) => x,
+        LocalResult::Ambiguous(y, _z) => y,
+    };
+    let datetime = utc.with_timezone(
+        &FixedOffset::east_opt(timestamp.tz_offset * 60)
+            .unwrap_or_else(|| FixedOffset::east_opt(0).unwrap()),
+    );
+    datetime.format("%Y-%m-%d %H:%M:%S.%3f %:z").to_string()
 }
 
 fn cmd_op_log(
diff --git a/src/template_parser.rs b/src/template_parser.rs
index d6049b6d7..f7126ce42 100644
--- a/src/template_parser.rs
+++ b/src/template_parser.rs
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use chrono::{FixedOffset, TimeZone, Utc};
+use chrono::{FixedOffset, LocalResult, TimeZone, Utc};
 use jujutsu_lib::backend::{CommitId, Signature};
 use jujutsu_lib::commit::Commit;
 use jujutsu_lib::op_store::WorkspaceId;
@@ -98,13 +98,21 @@ struct SignatureTimestamp;
 
 impl TemplateProperty<Signature, String> for SignatureTimestamp {
     fn extract(&self, context: &Signature) -> String {
-        let utc = Utc
-            .timestamp(
-                context.timestamp.timestamp.0.div_euclid(1000),
-                context.timestamp.timestamp.0.rem_euclid(1000) as u32 * 1000000,
-            )
-            .with_timezone(&FixedOffset::east(context.timestamp.tz_offset * 60));
-        utc.format("%Y-%m-%d %H:%M:%S.%3f %:z").to_string()
+        let utc = match Utc.timestamp_opt(
+            context.timestamp.timestamp.0.div_euclid(1000),
+            (context.timestamp.timestamp.0.rem_euclid(1000)) as u32 * 1000000,
+        ) {
+            LocalResult::None => {
+                return "<out-of-range date>".to_string();
+            }
+            LocalResult::Single(x) => x,
+            LocalResult::Ambiguous(y, _z) => y,
+        };
+        let datetime = utc.with_timezone(
+            &FixedOffset::east_opt(context.timestamp.tz_offset * 60)
+                .unwrap_or_else(|| FixedOffset::east_opt(0).unwrap()),
+        );
+        datetime.format("%Y-%m-%d %H:%M:%S.%3f %:z").to_string()
     }
 }