Complex timed cron jobs

Is there any way to set up complex timed cron jobs - ie
I have a job that needs to run at
08:45
12:00
17:15
and 17:35

Without setting up individual cron jobs for each time?

can't you just give your system more dates on one cronjob; to execute a cronjob?

I can specify minutes and hours but not a time.... eg. you might say 45, 00,15, 53 for the minutes and 8,12,17 for the hours, but that wont do what I want

Being very very old, and as such too lazy to learn to use cron, as well as too lazy to turn my pc off, I simply use a windows task scheduler to run scripts on my host site where needed. (scripts that: gather stock option data, 'massage' the data, output it to an excel file, save the excel file for downloading; have the task program download the excel file ready for use 1st thing in the morning)

just an idea.

Lite...