Please see below where AEDT times have been corrected from our initial post.
Web services that require user level authentication will be down for WMS and Identity Management system (IDM) updates beginning Sunday, July 20th, 2:00 am EDT. This will affect OCLC’s worldwide data centers as follows:
US & Canadian Data Centers: 20 July 02:00 Eastern (EDT)
European Data Center: 20 July 07:00 Central European (CET)
Australian Data Center: 20 July 14:00 Australian Eastern (AEDT)
We anticipate all services to be restored by 07:00 EDT / 12:00 CET / 19:00 AEDT, but may require an additional contingency until 10:00 noon EDT to complete testing.
Apologies for any inconvenience.