Timing can also track the current working directory of your bash sessions (bash is the software that runs inside Terminal to let you enter commands). In order to do so, you have to change the title of your Terminal windows to something like user@mac:/your/working/directory.
You need to manually apply these changes via the following steps:
touch ~/.profile; open -a TextEdit ~/.profile
PROMPT_TITLE='echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/~}\007"' export PROMPT_COMMAND="${PROMPT_COMMAND} ${PROMPT_TITLE}; "