https://www.suncalc.org/#/-38.1667,1...1.15/13:31/1/0
This will give you the exact time when the Sun is due North of your location.
I've used similar to set up my NEQ6 mount. The RA axis set level with a spirit level and a Baader film over the finder.
The view of the Sun should be exactly on the finder crosswires at the nominated time.