From fdb769c132a613136542de4cbcfe1b10b6488018 Mon Sep 17 00:00:00 2001
From: Bennet Bo Fenner <bennet@zed.dev>
Date: Wed, 18 Mar 2026 17:50:30 +0100
Subject: [PATCH] sidebar: Fix date formatting (#51851)

Previously we were not showing days

Release Notes:

- N/A
---
 crates/agent_ui/src/threads_archive_view.rs | 49 ++++++++++++---------
 crates/sidebar/src/sidebar.rs               | 25 ++---------
 2 files changed, 32 insertions(+), 42 deletions(-)

diff --git a/crates/agent_ui/src/threads_archive_view.rs b/crates/agent_ui/src/threads_archive_view.rs
index 9b4f9d215f6c572c64a8f548d3bd6955a9ff38ec..4cdbe0dd272c6659b7a534afc0ef560eea93ca3b 100644
--- a/crates/agent_ui/src/threads_archive_view.rs
+++ b/crates/agent_ui/src/threads_archive_view.rs
@@ -7,7 +7,7 @@ use crate::{
 use acp_thread::AgentSessionInfo;
 use agent::ThreadStore;
 use agent_client_protocol as acp;
-use chrono::{Datelike as _, Local, NaiveDate, TimeDelta, Utc};
+use chrono::{DateTime, Datelike as _, Local, NaiveDate, TimeDelta, Utc};
 use editor::Editor;
 use fs::Fs;
 use gpui::{
@@ -453,26 +453,10 @@ impl ThreadsArchiveView {
                 let focus_handle = self.focus_handle.clone();
                 let highlight_positions = highlight_positions.clone();
 
-                let timestamp = session.created_at.or(session.updated_at).map(|entry_time| {
-                    let now = Utc::now();
-                    let duration = now.signed_duration_since(entry_time);
-
-                    let minutes = duration.num_minutes();
-                    let hours = duration.num_hours();
-                    let days = duration.num_days();
-                    let weeks = days / 7;
-                    let months = days / 30;
-
-                    if minutes < 60 {
-                        format!("{}m", minutes.max(1))
-                    } else if hours < 24 {
-                        format!("{}h", hours)
-                    } else if weeks < 4 {
-                        format!("{}w", weeks.max(1))
-                    } else {
-                        format!("{}mo", months.max(1))
-                    }
-                });
+                let timestamp = session
+                    .created_at
+                    .or(session.updated_at)
+                    .map(format_history_entry_timestamp);
 
                 let id = SharedString::from(format!("archive-entry-{}", ix));
 
@@ -739,6 +723,29 @@ impl ThreadsArchiveView {
     }
 }
 
+pub fn format_history_entry_timestamp(entry_time: DateTime<Utc>) -> String {
+    let now = Utc::now();
+    let duration = now.signed_duration_since(entry_time);
+
+    let minutes = duration.num_minutes();
+    let hours = duration.num_hours();
+    let days = duration.num_days();
+    let weeks = days / 7;
+    let months = days / 30;
+
+    if minutes < 60 {
+        format!("{}m", minutes.max(1))
+    } else if hours < 24 {
+        format!("{}h", hours.max(1))
+    } else if days < 7 {
+        format!("{}d", days.max(1))
+    } else if weeks < 4 {
+        format!("{}w", weeks.max(1))
+    } else {
+        format!("{}mo", months.max(1))
+    }
+}
+
 impl Focusable for ThreadsArchiveView {
     fn focus_handle(&self, _cx: &App) -> FocusHandle {
         self.focus_handle.clone()
diff --git a/crates/sidebar/src/sidebar.rs b/crates/sidebar/src/sidebar.rs
index 4ffa1518f0442fbd1c8192bd87aa6419ad2a8497..5624ae3169122dab98e76ee0b2ff3ce056d73a17 100644
--- a/crates/sidebar/src/sidebar.rs
+++ b/crates/sidebar/src/sidebar.rs
@@ -3,7 +3,9 @@ use action_log::DiffStats;
 use agent::ThreadStore;
 use agent_client_protocol::{self as acp};
 use agent_ui::thread_metadata_store::{ThreadMetadata, ThreadMetadataStore};
-use agent_ui::threads_archive_view::{ThreadsArchiveView, ThreadsArchiveViewEvent};
+use agent_ui::threads_archive_view::{
+    ThreadsArchiveView, ThreadsArchiveViewEvent, format_history_entry_timestamp,
+};
 use agent_ui::{Agent, AgentPanel, AgentPanelEvent, NewThread, RemoveSelectedThread};
 use chrono::Utc;
 use editor::Editor;
@@ -2127,26 +2129,7 @@ impl Sidebar {
             .session_info
             .created_at
             .or(thread.session_info.updated_at)
-            .map(|entry_time| {
-                let now = Utc::now();
-                let duration = now.signed_duration_since(entry_time);
-
-                let minutes = duration.num_minutes();
-                let hours = duration.num_hours();
-                let days = duration.num_days();
-                let weeks = days / 7;
-                let months = days / 30;
-
-                if minutes < 60 {
-                    format!("{}m", minutes.max(1))
-                } else if hours < 24 {
-                    format!("{}h", hours)
-                } else if weeks < 4 {
-                    format!("{}w", weeks.max(1))
-                } else {
-                    format!("{}mo", months.max(1))
-                }
-            });
+            .map(format_history_entry_timestamp);
 
         ThreadItem::new(id, title)
             .icon(thread.icon)