Cron expression for schedule trigger

Hello Everyone,

I need to create a cron expression for below schedule,

Every 4 hours from Monday 5.45am to Saturday 5.15am.

I tried lot to create expression for it but couldn’t. Can anyone please help me with it.

Have a Look on the different online Hellers for cron Jobs

Some Tools also have the usefull Feature of getting checked the calculated schedules

0 45/1 5/4 ? * MON,TUE,WED,THU,FRI,SAT *