By pressing the END button or START button, you can get the location information from the GPS and then the current date and time of day.
And recorded in the database by pressing the record button, by calculating the work time to END from the START.
Record in the database, can be attached as a text file to the mail of smartphone and send it to any other party.
Attached file is a text file. Data can be used to list open in spreadsheet software, such as "Excel" because it is separated by a tab.
Other record of the hours worked of work, will be able to be used, for example, record of point-to-point, such as in travel.
Company called "black company" will exist in Japan.
It is a "Sweatshop".
These companies, forces the employee mobbing, bulling, spitting, abuse of authority, the unpaid overtime.
I think employees and they should know the exact time of the work themselves in order to counter the action of them at least.