Thought I'd make this available for anyone wanting to get an idea of 'how long' your rendering time is likely to be....
I made this primarily for 'Animation' render times (for when iRay works in iClone).
This chart is based on 24fps and won't work for 30 or other frame rates.
You simply 'time' how long ONE 'typical' frame takes to render and then locate that figure in the left-side column.
Then read off your scene (or project's) 'running time' along the top.
Where the two *intersect* (column with row) - that's your approximate rendering time ....Bear in mind this is a 'ball-park' figure because it assumes that the single frame you timed is truly 'representative' of the rest of the project - of course this may not always be the case. But if you've chosen to render 'by time' in the render panel options - then the results should be fairly accurate....

Please bear in mind that it simply wasn't feasible to include
every incremental time value - otherwise the chart would've been massive. But here's the work-a-round ....
Say you find that 4 min 30 secs is 'typical for your single rendered frame, then, since 4.5min isn't on the chart - just use the next HIGHER figure - ie: 5 minutes instead. So 5 minutes per frame (for your 30 second render) shows an estimate of 60 hours on the chart ....
Finally, I just want to say that these figures were calculated the 'long way' ie: not with a calculator or program. So I cannot say it's 100% error free - but hope it is .... Oh .... and fyi there are 168 hours in a week .... (24 hr clock). -- so the lower-right of the chart is in that territory ....
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Please be patient with me ..... I don't always 'get it' the first time 'round - not even the 2nd time! :( - yikes! ...
● MSI GT72VR Laptop, i7 7700HQ 4-Core 3.8 GHz 16GB RAM; Nvidia 1070, 8GB Vram ● iClone-7.93 ● 3DXChange Pipeline 7.81 ● CC-3 Pipeline 3.44 ● Live Face ● HeadShot ● Brekel Pro-Body ● Popcorn FX ● iRAY ● Kinect V2 ● DaVinci Resolve17 ● Mixcraft 8.1