Log the time you arrive at work based on your phone connecting to the works wifi
If
Connects to a specific WiFi network
This Trigger fires every time your Android device connects to a WiFi network you specify.
Then
Add row to spreadsheet
This action will add a single row to the bottom of the first worksheet of a spreadsheet you specify. Note: a new spreadsheet is created after 2000 rows.
Discover more time saving integrations for Android Device and Google Sheets