diff --git a/jupyter/base/values/values.yaml b/jupyter/base/values/values.yaml
index 6dbb98a..0a4d8d1 100644
--- a/jupyter/base/values/values.yaml
+++ b/jupyter/base/values/values.yaml
@@ -12,6 +12,7 @@ hub:
   extraConfig:
     oauthCode: |
       import time
+      from datetime import datetime
       from oauthenticator.generic import GenericOAuthenticator
 
       def post_auth_hook(authenticator, handler, authentication):
@@ -35,19 +36,25 @@ hub:
           spawner.environment['NEXTCLOUD_ACCESS_TOKEN'] = access_token
 
         async def refresh_user(self, user, handler=None):
+          debug = 'NEXTCLOUD_DEBUG_OAUTH' in os.environ
           auth_state = await user.get_auth_state()
           if not auth_state:
-            print(f'auth_state missing for {user}')
+            if debug:
+              print(f'auth_state missing for {user}')
             return False
           access_token = auth_state['access_token']
           refresh_token = auth_state['refresh_token']
           token_response = auth_state['token_response']
           now = time.time()
+          now_hr = datetime.fromtimestamp(now)
           expires = auth_state['token_expires']
+          expires_hr = datetime.fromtimestamp(expires)
           if now >= expires:
-            print(f'Time is: {now}, token expired: {expires}')
+            if debug:
+              print(f'Time is: {now_hr}, token expired: {expires_hr}')
             return False
-          print(f'Time is: {now}, token expires: {expires}')
+          if debug:
+            print(f'Time is: {now_hr}, token expires: {expires_hr}')
           return True
 
       c.JupyterHub.authenticator_class = NextcloudOAuthenticator
@@ -66,6 +73,7 @@ hub:
       c.NextcloudOAuthenticator.post_auth_hook = post_auth_hook
 
   extraEnv:
+    NEXTCLOUD_DEBUG_OAUTH: "yes"
     NEXTCLOUD_HOST: sunet.drive.test.sunet.se
     JUPYTER_HOST: jupyter.drive.test.sunet.se
     JUPYTERHUB_CRYPT_KEY: