Time Calculator - Add time, compare times, total a time card. Free.

Time Calculator is four free browser tools for everyday time math. Add or subtract durations, or shift a clock time forward and back. Find the gap between a start and end time, with optional unpaid breaks deducted. Total a seven-day time card and copy it, export a CSV or print it. Convert between hours and decimal hours when a timesheet needs either format. Nothing leaves the browser and no account is needed. It does not handle wages, overtime, time zones or payroll.