This all from Stratics. I have not confirmed these independently.
UO Servers | Server Downtimes | Fighting the Lag Monster
UO Server Maintenance Schedule - by Petra Fyde; May 2009
Ultima Online game servers are taken off line once per day for scheduled maintenance which normally takes approximately 15 minutes. The following table is based on GMT and does not take into account seasonal daylight saving adjustments. All times are approximate and should be taken as a guideline only.
http://uo.stratics.com/php-bin/show_content.php?content=30622Scheduled Server Downtimes
Ultima Online USA-W
PS USA-C
CST USA-E
EST UK
GMT Eu-C
CET Taiwan
Japan Aus
EAST
Atlantic
Catskills
Chesapeake
Great Lakes
Lake Superior
Legends
Siege Perilous
3.00am 5.00am 6.00am 11.00am 12.00pm 7.00pm 8.00pm 9.00pm
Baja
Lake Austin
Napa Valley
Origin
Pacific
Sonoma 5.00am 7.00am 8.00am 1.00pm 2.00pm 9.00pm
10.00pm 11.00pm
Drachenfels
Europa 9.00pm 11.00pm 12.00am 5.00am 6.00am 1.00pm
2.00pm 3.00pm
Oceania 1.00pm 3.00pm 4.00pm 9.00pm 10.00pm 5.00am
6.00am 7.00am
Asuka
Hokuto
Izumo
Mizuho
Mugen
Sakura
Wakoku
Yamato 3.00am 5.00pm 6.00pm 11.00pm 0.00am 7.00am
8.00am 9.00am
Arirang
Balhae 4.00pm 6.00pm 7.00pm 12.00am 1.00am 8.00am 9.00am 10.00am
Formosa 4.00pm 6.00pm 7.00pm 12.00am 1.00am 8.00am 9.00am 10.00am
Veteran Rewards
11.00am
12.00pm
1.00pm 6.00pm
7.00pm 2.00am
3.00am
4.00am
In addition the login server is maintained weekly on Tuesdays as follows:
Scheduled Server Downtimes
Ultima Online USA-W
PS USA-C
CST USA-E
EST UK
GMT Eu-C
CET Taiwan
Japan Aus
EAST
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