For employees

To get the summary for today, type "timesheet" and you would get a punch logs for the current day. 

To get the a report of your time in office for the current and previous month say, "timesheet report" and you'll receive a CSV report to download.

You can generate a report for a specific time period by appending the date range to the report command. Example - "Timesheet Report jan 3 to feb 10".

Managers:

You can type in the command "Report" and select the report type as Timesheet Report/Timesheet Summary Report, select the relevant details and hit "Confirm".

You can download a CSV report with the timesheet data

Note:

To download a report for work hours for a specific project or a client, just follow this article