I am trying to reference one bar (the open, the high, the low and the close) within the day to make trading decisions.

The rollingwindow and history requests seem to only discuss referencing previous bars to update indicators. What I want to do is reference, say, only the 12:00pm (or the 12:01pm, 12:02, etc) bar no matter what time in the day it is (obviously it would have to be after 12:00pm in my example).

I have looked through all of the rollingwindow and history requests discussions and cannot find my answer.

Thank you in advance for your help.