From 5feea2bfa7e940f40bdfd4ff6daca5522f8705b8 Mon Sep 17 00:00:00 2001
From: Maxwell <145994855+ping-maxwell@users.noreply.github.com>
Date: Mon, 2 Mar 2026 09:59:18 -0800
Subject: [PATCH] fix: drizzle-adapter failing date transformation (#8289)

---
 packages/drizzle-adapter/src/drizzle-adapter.ts | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/packages/drizzle-adapter/src/drizzle-adapter.ts b/packages/drizzle-adapter/src/drizzle-adapter.ts
index 43730ab7a9..b92167a1e0 100644
--- a/packages/drizzle-adapter/src/drizzle-adapter.ts
+++ b/packages/drizzle-adapter/src/drizzle-adapter.ts
@@ -671,10 +671,17 @@ export const drizzleAdapter = (db: DB, config: DrizzleAdapterConfig) => {
 					? true
 					: false,
 			supportsArrays: config.provider === "pg" ? true : false,
-			// not all providers support dates
-			// one such example case is https://github.com/better-auth/better-auth/issues/7819
-			// it's safe to set to `false` without checking for provider, because it it is dates the transformation doesn't apply anyway.
-			supportsDates: false,
+			customTransformOutput: ({ data, fieldAttributes }) => {
+				// not all providers support dates
+				// one such example case is https://github.com/better-auth/better-auth/issues/7819
+				if (fieldAttributes.type === "date") {
+					if (data === null || data === undefined) {
+						return data;
+					}
+					return new Date(data);
+				}
+				return data;
+			},
 			transaction:
 				(config.transaction ?? false)
 					? (cb) =>