diff --git a/gestion/ldap_crans.py b/gestion/ldap_crans.py
index fbee5944..8c6e69e9 100755
--- a/gestion/ldap_crans.py
+++ b/gestion/ldap_crans.py
@@ -473,7 +473,7 @@ class crans_ldap:
                     return
                 keep_date=[]
                 for date in serv_dates[new[1:]]:
-                    if time.time() < int(date)+time.timezone:
+                    if time.time() - time.timezone < int(date):
                         keep_date.append(date)
                 if keep_date:
                     self.conn.modify_s(remove_dn,ldap.modlist.modifyModlist({'start': serv_dates[new[1:]]}, { 'start': keep_date }))