Pick a number, any number! 

To set a threshold rounding amount, just head to your settings panel by typing 'settings' --> Time Tracking--> General Time Settings and find the "Round to the nearest minute" option and set any number that law, internal process, or client contract requires.

Once rounding is established, for example to 15 minutes, any punch in or out time will be rounded to the nearest 15 min, so a punch in at 9:27 will become 9:30 and any punch out at 9:06 will become 9:00.

Notes: 

• In the US, federal law allows only 15 minute rounding periods at most. More common increments in the US and around the world include 12 minutes (fifth of an hour) and 6 minutes (tenth of an hour). 
• For those adhering to the 7-minute rule, say lawyers, please contact AttendanceBot support for configuration.