Matches on between 1.30-3.30 are in the dead man's hours.
Do it if you wish to replicate the affects of jet lag later that day.
You also need to be careful of commentators spoiling, by mentioning results from earlier games while calling a later match.
It's tough being lazy.
I remember for the Argentina test this year, Link spoiled the bloody result of the South Africa v NZ game when he was interviewed getting off the bus in Mendoza.