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Samples of cron notations

"0 0 12 * * ? *"                    Fire at 12pm (noon) every day
"0 15 10 ? * * *"                  Fire at 10:15am every day 
"0 10,44 14 ? 3 WED *"     Fire at 2:10pm and at 2:44pm every Wednesday in the month of March.
"0 15 10 ? * MON-FRI *"  Fire at 10:15am every Monday, Tuesday, Wednesday, Thursday and Friday

quartz documentation http://www.quartz-scheduler.org/documentation/quartz-1.x/tutorials/crontrigger