diff --git a/.changeset/real-seahorses-sleep.md b/.changeset/real-seahorses-sleep.md
new file mode 100644
index 0000000..05ed8ff
--- /dev/null
+++ b/.changeset/real-seahorses-sleep.md
@@ -0,0 +1,5 @@
+---
+"hereby": minor
+---
+
+Use `performance.now` instead of `Date.now`
diff --git a/.eslintrc.json b/.eslintrc.json
index c04a860..b1cc82b 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -25,7 +25,7 @@
         "no-inner-declarations": "off",
         "no-undef": "off",
         "no-unused-vars": "off",
-        "no-restricted-globals": ["error", "console", "process"],
+        "no-restricted-globals": ["error", "console", "process", "Date"],
         "simple-import-sort/imports": "error",
         "simple-import-sort/exports": "error",
         "@typescript-eslint/no-import-type-side-effects": "error",
diff --git a/src/cli/index.ts b/src/cli/index.ts
index b53c3b0..c6f21fe 100644
--- a/src/cli/index.ts
+++ b/src/cli/index.ts
@@ -1,4 +1,5 @@
 import path from "node:path";
+import { performance } from "node:perf_hooks";
 import { types } from "node:util";
 
 import pc from "picocolors";
@@ -59,7 +60,7 @@ async function mainWorker(d: D) {
     const taskNames = tasks.map((task) => pc.blue(task.options.name)).join(", ");
     d.log(`Using ${pc.yellow(d.simplifyPath(herebyfilePath))} to run ${taskNames}`);
 
-    const start = Date.now();
+    const start = performance.now();
 
     let errored = false;
     try {
@@ -72,7 +73,7 @@ async function mainWorker(d: D) {
         // so we don't end up with an unflushed output.
         d.setExitCode(1);
     } finally {
-        const took = Date.now() - start;
+        const took = performance.now() - start;
         d.log(`Completed ${taskNames}${errored ? pc.red(" with errors") : ""} in ${d.prettyMilliseconds(took)}`);
     }
 }
diff --git a/src/cli/runner.ts b/src/cli/runner.ts
index 0e4db14..0db05e0 100644
--- a/src/cli/runner.ts
+++ b/src/cli/runner.ts
@@ -1,3 +1,5 @@
+import { performance } from "node:perf_hooks";
+
 import pc from "picocolors";
 
 import type { Task } from "../index.js";
@@ -58,7 +60,7 @@ export class Runner {
     }
 
     protected onTaskStart(task: Task): void {
-        this._startTimes.set(task, Date.now());
+        this._startTimes.set(task, performance.now());
 
         if (this._errored) {
             return; // Skip logging.
@@ -72,7 +74,7 @@ export class Runner {
             return; // Skip logging.
         }
 
-        const took = Date.now() - this._startTimes.get(task)!;
+        const took = performance.now() - this._startTimes.get(task)!;
         this._d.log(`Finished ${pc.green(task.options.name)} in ${this._d.prettyMilliseconds(took)}`);
     }
 
@@ -82,7 +84,7 @@ export class Runner {
         }
 
         this._errored = true;
-        const took = Date.now() - this._startTimes.get(task)!;
+        const took = performance.now() - this._startTimes.get(task)!;
         this._d.error(`Error in ${pc.red(task.options.name)} in ${this._d.prettyMilliseconds(took)}\n${e}`);
     }
 }