diff --git a/quarry/targets.py b/quarry/targets.py
index 730ed68f..cd32ed43 100755
--- a/quarry/targets.py
+++ b/quarry/targets.py
@@ -22,7 +22,6 @@
 import subprocess
 import tempfile
 from collections.abc import Callable
-from datetime import UTC, datetime
 from pathlib import Path
 from typing import Any, NotRequired, TypedDict
 
@@ -195,11 +194,6 @@ def write_targets(args: argparse.Namespace) -> None:
         # All paths are absolute because hardhat runs from the stage, not the action's directory.
         argv = [
             os.path.abspath(args.hardhat),
-            # hardhat ignores SOURCE_DATE_EPOCH and versions the targets by the wall-clock time.
-            # Importing them into a repository keeps only their entries, so any fixed time will do.
-            # TODO: Drop this once the pinned quarry has https://github.com/amutable/quarry/pull/97
-            "--ref-time",
-            datetime.fromtimestamp(int(os.environ["SOURCE_DATE_EPOCH"]), UTC).strftime("%Y-%m-%dT%H:%M:%SZ"),
             "targets",
             # The file has no signatures and the zero time as its expiry, which nothing checks.
             "--unsigned",
diff --git a/quarry/targets_test.py b/quarry/targets_test.py
index 2c23000d..fed6857e 100644
--- a/quarry/targets_test.py
+++ b/quarry/targets_test.py
@@ -11,7 +11,6 @@
 import sys
 import tempfile
 import unittest
-import unittest.mock
 from pathlib import Path
 
 import targets
@@ -241,20 +240,18 @@ def test_targets(self) -> None:
             transfers.mkdir()
             out = base / "out"
             out.mkdir()
-            with unittest.mock.patch.dict(os.environ, {"SOURCE_DATE_EPOCH": "1739577600"}):
-                targets.main([
-                    "--artifacts", os.fspath(description),
-                    "--files", os.fspath(files),
-                    "--output", os.fspath(out / f"targets_{ARCH}.json"),
-                    "--hardhat", os.fspath(hardhat),
-                    "--exclude", "disk/raw",
-                    "--transfer-dir", f"sysupdate.d={transfers}",
-                ])  # fmt: skip
+            targets.main([
+                "--artifacts", os.fspath(description),
+                "--files", os.fspath(files),
+                "--output", os.fspath(out / f"targets_{ARCH}.json"),
+                "--hardhat", os.fspath(hardhat),
+                "--exclude", "disk/raw",
+                "--transfer-dir", f"sysupdate.d={transfers}",
+            ])  # fmt: skip
 
             self.assertFalse((out / "1.root.json").exists())
             called = json.loads((out / f"targets_{ARCH}.json").read_text())
-            # The targets are versioned by SOURCE_DATE_EPOCH rather than the wall-clock time.
-            self.assertEqual(called["argv"][:3], ["--ref-time", "2025-02-15T00:00:00Z", "targets"])
+            self.assertEqual(called["argv"][0], "targets")
             # The build holds no signing key.
             self.assertIn("--unsigned", called["argv"])
             self.assertNotIn("--keystore", called["argv"])
diff --git a/remote_cache/seaweed.py b/remote_cache/seaweed.py
index 167ef8bd..2704c6ca 100644
--- a/remote_cache/seaweed.py
+++ b/remote_cache/seaweed.py
@@ -15,8 +15,7 @@
 from collections.abc import Callable
 from pathlib import Path
 
-# 4.50 regression: first write blocks for 15s: https://github.com/seaweedfs/seaweedfs/issues/12058
-STARTUP_TIMEOUT = 30
+STARTUP_TIMEOUT = 10
 
 
 def free_ports(count: int) -> list[int]: