diff --git a/vite.config.js b/vite.config.js
index 931dc3b566..2dba89b5d8 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -23,25 +23,47 @@ const {
   PHANPY_APP_ERROR_LOGGING: ERROR_LOGGING,
   PHANPY_REFERRER_POLICY: REFERRER_POLICY,
   PHANPY_DISALLOW_ROBOTS: DISALLOW_ROBOTS,
+  PHANPY_COMMIT_HASH: COMMIT_HASH,
+  PHANPY_COMMIT_TIME: COMMIT_TIME,
+  PHANPY_NOW: NOW,
   PHANPY_DEV,
 } = loadEnv('production', process.cwd(), allowedEnvPrefixes);
 
-const now = new Date();
+const now = NOW ? new Date(NOW) : new Date();
 let commitHash;
 let commitTime;
 let fakeCommitHash = false;
-try {
-  const gitResult = execSync('git log -1 --format="%h %cI"').toString().trim();
-  const [hash, time] = gitResult.split(' ');
-  commitHash = hash;
-  commitTime = new Date(time);
-} catch (error) {
-  // If error, means git is not installed or not a git repo (could be downloaded instead of git cloned)
-  // Fallback to random hash which should be different on every build run 🤞
-  commitHash = uid();
-  commitTime = now;
-  fakeCommitHash = true;
+if (COMMIT_HASH && COMMIT_TIME) {
+  console.log('Using provided commit hash and timestamp');
+  commitHash = COMMIT_HASH;
+  commitTime = new Date(COMMIT_TIME);
+} else {
+  try {
+    console.log('Fetching commit hash and timestamp from Git');
+    const gitResult = execSync('git log -1 --format="%h %cI"')
+      .toString()
+      .trim();
+    const [hash, time] = gitResult.split(' ');
+    commitHash = hash;
+    commitTime = new Date(time);
+  } catch (error) {
+    // If error, means git is not installed or not a git repo (could be downloaded instead of git cloned)
+    // Fallback to random hash which should be different on every build run 🤞
+    console.log(
+      'Falling back to randomly-generated commit hash, and current timestamp',
+    );
+    commitHash = uid();
+    commitTime = now;
+    fakeCommitHash = true;
+  }
 }
+console.log(
+  [
+    `  commit hash: ${commitHash}`,
+    `  commit time: ${commitTime.toISOString()}`,
+    `  build time:  ${now.toISOString()}`,
+  ].join('\n'),
+);
 
 let rollbarCode = fs.readFileSync(resolve(__dirname, './rollbar.js'), 'utf-8');
 rollbarCode = rollbarCode.replace('__PHANPY_COMMIT_HASH__', `'${commitHash}'`);