you can make them 24/7 give 100% EXP by doing :
1- go to serverfiles folder.
2- open Server.cfg.
3- replace this
PHP Code:
//HourForMeterRateLevelFirst 22
//HourForMeterRateLevelSecond 23
with this
PHP Code:
HourForMeterRateLevelFirst 22
HourForMeterRateLevelSecond 23
or just delete the "//" symbol
4- save the file and restart the Shardmanager and Gameserver
5- Have fun ..