Bus from Pingyao to Wutaishan and from taiyuan to wutaishan

what is the bus schedule from Pingyao to wutaishan and how many hours is the journey ? What is the bus schedule from taiyuan to wutaishan and how many hours is this journey ? Do I save time if I take a train from Pingyao to taiyuan and then only take a bus to go to wutaishan ? Where are the bus stations at both places ? Thanks