For those who care about their time, Duraation can be useful in time calculation. With this application the only thing you need to do is writing your daily activities down and use #hashtags for the keywords. For example, "doing #exercise #elliptical".
Then create a report based on your custom #hashtags. The application will show you the total amount of time has been spent with activities details.
This way you will track your time easily in the way you have got used to it which is using #hashtags. Simples!