Tmr uses Python and an SQlite database to store your timed events. Tmr's only dependency outside of Python's stdlib is Peewee, an easy to use ORM. Written with Python 3.4 in mind, but it should work in most version 2.7+.
Download the source, cd into the source folder, and run pip install .. Eventually I hope to get it up on PyPI.
tmr init
This will initialize and create your database. It only needs to be run once after installation. The database will be created in your User directory.
tmr start TITLE
This will start a timer with the title TITLE.
tmr end TITLE
This will end a timer with the title TITLE.
tmr list
This will list all running timers.
tmr export
This will export the timers to a csv file. By default, the file will be created in your User directory.