word usage - How to say something that will happen at X minutes every hour?

I am coding a task scheduler. One of the options allows the user to select a task to be performed every hour at X minutes (ie. 00:45, 01:45, 02:45... 23:45).

Since I don't want to clutter the UI, I would like to know a short way of expressing this.

Assuming the user wants the task to be performed every hour at 45, these are the ways I have thought about, but they all sound weird to me.

• Perform at 45 minutes (hourly)


• Perform every 1 hour at minute 45


• Perform at 00:45 (every hour)


• Perform at minute 45 (hourly)

Is there a better way to express this?

EDIT: Another way may be "Perform hourly at :45 mins"

Answer

For (00:45, 01:45, 02:45... 23:45) I would write:

Perform hourly, at 45 minutes past the hour.

where "the hour" refers to the top of the hour (:00).