1º. localize o arquivo >> net.sf.l2j.Config.java

ALT_OLY_CPERIOD = Long.parseLong(altSettings.getProperty(
"AltOlyCPeriod", "21600000")) * 1000;
ALT_OLY_BATTLE = Long.parseLong(altSettings.getProperty(
"AltOlyBattle", "360000")) * 1000;
ALT_OLY_BWAIT = Long.parseLong(altSettings.getProperty(
"AltOlyBWait", "600000")) * 1000;
ALT_OLY_IWAIT = Long.parseLong(altSettings.getProperty(
"AltOlyIWait", "300000")) * 1000;
ALT_OLY_WPERIOD = long.parseLong(altSettings.getProperty(
"AltOlyWPeriod", "604800000")) * 1000;
ALT_OLY_VPERIOD = Long.parseLong(altSettings.getProperty(
"AltOlyVPeriod", "86400000")) * 1000;

2º. agora abra o config/AltSettings.properties

#-------------------------------------------------------------
# Olympiad config
#-------------------------------------------------------------
# Olympiad Start Time in Military hours Default 6pm (18) 
AltOlyStartTime = 18

# Olympiad Start Time for Min's, Default 00 so at the start of the hour.
AltOlyMin = 00

# Olympiad Compeition Period, Default 6 hours.
# (If set different, should be increment by 10mins)
AltOlyCPeriod = 21600000

# Olympiad Battle Period, Default 6 minutes. (If set different, should be < AltOlyBWait)
AltOlyBattle = 360000

# Olympiad Battle Wait, Default 10 Minutes
AltOlyBWait = 600000

# Olympiad Inital Wait Period, Default 5 minutes
AltOlyIWait = 300000

# Olympiad Weekly Period, Default 1 week
AltOlyWPeriod = 604800000

# Olympiad Validation Period, Default 24 Hours.
AltOlyVPeriod = 86400000