About HourHarbor

HourHarbor provides free work-time calculation tools for hourly workers, freelancers, small businesses, and people checking their time records.

Three focused tools

Use the Work Hours Calculator for one shift, the Time Card Calculator for multiple shifts across a week, or the Decimal Hours Calculator to change time formats.

Accuracy you can check

Shift totals are calculated in whole minutes before conversion or rounding. Our calculation methods explain the formulas, assumptions, and limits, including overnight shifts and rounding.

Speed and privacy

Calculator inputs are processed locally in your browser. There is no account to create and no time record to upload. Once a calculator page has loaded, its calculations do not need a network connection.

HourHarbor is an arithmetic utility, not a payroll service. Verify important results against your records and the requirements that apply to you.