Reddit mentions of The Time Traveler's Guide to Medieval England: A Handbook for Visitors to the Fourteenth Century

These holidays or "holy days" were not often not really vacations but days that you would attend church and have a large meal. These days often were centered around a Saint or the life of Jesus and were pretty frequent. Church, above all, was a social gathering. People were very pious, but they also enjoyed gossip. These days were an important way of uniting scattered farms in the days before reliable mail systems.

On most of these days you would still do many chores and you may have also worked. From what I gather they were somewhat like a modern "half day".

Source: The Time Travelers Guide to Medieval England

I just finished this... it was quite good.

Ian Mortimer's A Time Traveler's Guide to Medieval England is a good, cheap, and readable survey of 14th century life.

If I may suggest a good read on a similar subject: The Time Traveler's Guide to Medieval England: A Handbook for Visitors to the Fourteenth Century by Ian Mortimer. This is how I wish I had learned about history in school; i.e., not about battles and kings and memorizing dates of treaties, but about how folks were actually living at the time.

This one is a fun read with some every aspects of life you normally wouldn't think about, Time travelers guide to medieval england http://www.amazon.com/Time-Travelers-Guide-Medieval-England/dp/1439112894. It deals with the 1300s though.