There is a seach box titled "What did you do today".
Enter the relevant activity, and a box should pop up allowing you to enter the duration, and Spark will calculate the rest.
Alternatively, there is a link just to the right of the search box allowing you to enter your own information.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.
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