diff --git a/Cargo.toml b/Cargo.toml
index 86d0387..f89cafe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "continue-transcripts"
-version = "0.9.0"
+version = "0.10.0"
 edition = "2021"
 description = "Convert continue.dev session files to readable HTML transcripts"
 license = "MIT"
diff --git a/README.md b/README.md
index f152feb..10c42fd 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,7 @@ Install globally so the `continue-transcripts` command is always available:
 ```sh
 uv tool install continue-transcripts \
   --no-index \
-  --find-links https://github.com/curtisalexander/continue-transcripts/releases/expanded_assets/v0.9.0
+  --find-links https://github.com/curtisalexander/continue-transcripts/releases/expanded_assets/v0.10.0
 ```
 
 The `continue-transcripts` command is then available on your `PATH`.
@@ -83,7 +83,7 @@ To upgrade later (update the version in the URL):
 ```sh
 uv tool install --upgrade continue-transcripts \
   --no-index \
-  --find-links https://github.com/curtisalexander/continue-transcripts/releases/expanded_assets/v0.9.0
+  --find-links https://github.com/curtisalexander/continue-transcripts/releases/expanded_assets/v0.10.0
 ```
 
 To uninstall:
@@ -100,7 +100,7 @@ Run without installing:
 uvx \
   --no-index \
   --from continue-transcripts \
-  --find-links https://github.com/curtisalexander/continue-transcripts/releases/expanded_assets/v0.9.0 \
+  --find-links https://github.com/curtisalexander/continue-transcripts/releases/expanded_assets/v0.10.0 \
   continue-transcripts ./sessions
 ```
 
@@ -115,7 +115,7 @@ uv venv .venv
 source .venv/bin/activate
 uv pip install continue-transcripts \
   --no-index \
-  --find-links https://github.com/curtisalexander/continue-transcripts/releases/expanded_assets/v0.9.0
+  --find-links https://github.com/curtisalexander/continue-transcripts/releases/expanded_assets/v0.10.0
 ```
 
 ### Building from source
diff --git a/pyproject.toml b/pyproject.toml
index 585f5fe..68ce820 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "continue-transcripts"
-version = "0.9.0"
+version = "0.10.0"
 description = "Convert continue.dev session files to readable HTML transcripts"
 readme = "README.md"
 license = { text = "MIT" }
diff --git a/python/continue_transcripts/__init__.py b/python/continue_transcripts/__init__.py
index 22722b5..e059e4e 100644
--- a/python/continue_transcripts/__init__.py
+++ b/python/continue_transcripts/__init__.py
@@ -1,3 +1,3 @@
 """continue-transcripts - Convert continue.dev session files to readable HTML transcripts."""
 
-__version__ = "0.9.0"
+__version__ = "0.10.0"
diff --git a/src/main.rs b/src/main.rs
index 6373e76..26c2202 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1164,7 +1164,7 @@ fn file_modified_date(path: &Path) -> Option<String> {
     let meta = fs::metadata(path).ok()?;
     let modified = meta.modified().ok()?;
     let dt: chrono::DateTime<chrono::Local> = modified.into();
-    Some(dt.format("%Y-%m-%d %H:%M").to_string())
+    Some(dt.format("%Y-%m-%dT%H:%M:%S").to_string())
 }
 
 /// Format a date string for human-readable display.
@@ -2634,6 +2634,17 @@ footer {
 // ---------------------------------------------------------------------------
 
 const JS: &str = r#"<script>
+function fallbackCopy(text) {
+  var ta = document.createElement('textarea');
+  ta.value = text;
+  ta.style.cssText = 'position:fixed;left:-9999px;top:-9999px';
+  document.body.appendChild(ta);
+  ta.select();
+  var ok = false;
+  try { ok = document.execCommand('copy'); } catch(e) {}
+  document.body.removeChild(ta);
+  return ok;
+}
 document.addEventListener('DOMContentLoaded', function() {
   // Theme toggle
   (function() {
@@ -2700,15 +2711,23 @@ document.addEventListener('DOMContentLoaded', function() {
     btn.className = 'copy-btn';
     btn.textContent = 'Copy';
     btn.addEventListener('click', function() {
-      var text = pre.textContent;
-      navigator.clipboard.writeText(text).then(function() {
+      var code = pre.querySelector('code');
+      var text = code ? code.textContent : pre.textContent;
+      function onSuccess() {
         btn.textContent = 'Copied!';
         btn.classList.add('copied');
         setTimeout(function() {
           btn.textContent = 'Copy';
           btn.classList.remove('copied');
         }, 1500);
-      });
+      }
+      if (navigator.clipboard && navigator.clipboard.writeText) {
+        navigator.clipboard.writeText(text).then(onSuccess).catch(function() {
+          fallbackCopy(text) && onSuccess();
+        });
+      } else {
+        fallbackCopy(text) && onSuccess();
+      }
     });
     wrapper.appendChild(btn);
   });
@@ -3561,6 +3580,11 @@ mod tests {
             extract_datetime_prefix("2025-01-01"),
             Some("2025-01-01".to_string())
         );
+        // Format produced by file_modified_date fallback (no timezone)
+        assert_eq!(
+            extract_datetime_prefix("2025-06-15T10:30:00"),
+            Some("2025-06-15_1030".to_string())
+        );
         assert_eq!(extract_datetime_prefix("not-a-date"), None);
         assert_eq!(extract_datetime_prefix("short"), None);
     }