Some of the links on this forum allow SMF, at no cost to you, to earn a small commission when you click through and make a purchase. Let me know if you have any questions about this.
Everyone mostly uses Internal temperature (IT) these days. Time and temp requires experience and has many variables. But here is a time/temperature chart for estimating purposes....
Right click the chart, click open in new tab, that'll get it big enough to read. Remember Time temperature chart is only for estimating because it can not include all the variables.