Time card calculation

A day can contain more than one shift. Calculate each shift separately, add the shifts to get the day, then add the days to get the period.

shift  = (out − in) − unpaid break
day    = Σ shifts
period = Σ days

Suppose five days of 7 hours 17 minutes. In minutes that is 5 × 437 = 2185 minutes, or 36.4167 hours. Round each day to 7.28 first and you get 36.40 — a full minute short.

exact:    2185 min ÷ 60 = 36.4167
rounded:  5 × 7.28        = 36.40

Every calculator on this site keeps totals in whole minutes and converts once, so the same week produces the same answer no matter which page you use.

Monday
  08:00 → 12:00   = 4:00
  13:00 → 17:00   = 4:00
  Day total       = 8:00

There is no special split-shift rule — a day is simply a list of shifts added together.

A punch pair where the out time is earlier than the in time is treated as ending the next day, so 10:00 PM to 6:00 AM is 8 hours and the day it belongs to is the day it started.

Splitting a period at 40 hours shows hours above the threshold you chose. Break, rounding, overtime and compensable-time requirements vary by employer, contract, worker classification and jurisdiction. This site does not determine the rules that legally apply to you.

Weekly or biweekly — does it change the maths?

No. A biweekly period is fourteen days added the same way. Only a threshold split depends on which period you chose.

How do I keep a copy?

Use Copy summary for plain text, Download CSV for a spreadsheet, or Print for a clean page you can save as PDF.

• Time Card CalculatorWeekly or biweekly clock punches.
• Work Hours CalculatorStart and end times with breaks.
• Decimal Hours CalculatorConvert HH:MM and decimal time.