@Horyzon SO… I think I have this working if you’d like to try it.
uses the cron nomenclature
“56-57 16-18 * * 4-6”
“minute hour day month day_of_week”
any of those can be ranges like above for minute, hour and day of week
means any
so, the mask above says
valid for last 3 days of week, thur-sat
between 16:00 and 18:00
during the two minutes at hh:56-57
so 16:56-57. 17:56-57 , on thur, fri, sat nights all year
the values can also be treated with some divisor
mm/2 means the even minutes
mm/30 means every 30 minutes
hh/2 even other hour
etc
commas are allowed too 3,5,7,8 on the 3rd, 5th, 7th,8th (minute,hour, month day of month,
7/8 are invalid for day of week 0-6, sunday is day 0
there are crontab generators… click some boxes and it will spit out the string