If you enter the office room, then update your Google Drive timesheet

Create custom workflows effortlessly by selecting triggers, queries, and actions. With IFTTT, it's simple: “If this” trigger happens, “then that” action follows. Streamline tasks and save time with automated workflows that work for you.
14 triggers, queries, and actions
Google Sheets lets you create and edit spreadsheets stored on your Google Drive. Turn on Applets to monitor specific cells in your spreadsheets as well create news docs, rows, and cell updates.
LinkDesk Room Locator is the next generation motion detector that triggers services and devices as you enter or leave a room. Available at Amazon