List git commits to master branch between two dates

$ git log --since "DEC 1 2014" --until "DEC 5 2014" --pretty=format:"%h %an %ad"

This will give the format you want for the commits between dec 1 2014 and dec 5 2014, you can change the dates as you like

If you wish to change the format, you can read about the options here

Have you tried

git whatchanged --since="2 year ago" --until="1 year ago" [--author="NAME_OF_THE_AUTHOR"]

Even git log can be utilized to have this result. There are some advance options available in git log

git log --after="2014-7-1" --before="2014-7-4"

For more details about advance git log you can refer to this link

Well, this should do the trick:

git log --oneline --since="1/1/2014" --until="30/6/2014"

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$ git log master --pretty="%h %an %ad" --since=2014-01-01 --until=2014-06-30

Here is everything http://git-scm.com/docs/git-log