From Serials Solutions:

The Client Center will have a downtime from 8 p.m. Friday, Sep. 16, to 5 a.m. Saturday, Aug. 17.  During most of this downtime, your 360 Link service will remain available to your patrons. However, 360 Link (as well as the E-Journal Portal and 360 Search) will be unavailable to your patrons for about 20 minutes some time between 8 p.m.  and 10 p.m. During this downtime, any patrons trying to use 360 Link will see a message advising them of the downtime and inviting them to try again later.

(The “Client Center” is used by staff only. 360 Link service provides linking to full-text from Summon searches. The E-journal portal is our “Journals A to Z” list)