how to write a complex quartz cron expression -


i need develop web service, client periodic job, api void dojob(int jobtype, string cronexpression);

because client/user want, want know cron expression support situation below:

the job fire in following times: 9:10am 10:50am trigger @ every 8 minutes, every day.

from 9:00 10:00 maybe easier, still cannot find correct cron expression 9:10am 10:50am.

not sure if can using 1 cron expression, can using two.

eg

0 10,18,26,34,42,50,58 9 1/1 * ? *  0 6,14,22,30,38,46 10 1/1 * ? *

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