# Time Card Calculator

Calculate hours worked from clock-in and clock-out times. Deducts lunch break and flags overtime over 8 hours. Get decimal hours for payroll.

## What this calculates

Enter your clock-in and clock-out times to calculate your total hours worked for the day. The calculator subtracts your lunch break, shows the result in both standard and decimal format, and flags any overtime beyond 8 hours.

## Inputs

- **Clock In - Hour** — min 1, max 12 — Hour you clocked in (1-12)
- **Clock In - Minute** — min 0, max 59 — Minute you clocked in
- **Clock In - AM/PM** — options: AM, PM
- **Clock Out - Hour** — min 1, max 12 — Hour you clocked out (1-12)
- **Clock Out - Minute** — min 0, max 59 — Minute you clocked out
- **Clock Out - AM/PM** — options: AM, PM
- **Lunch Break** (minutes) — min 0, max 120 — Unpaid lunch break duration in minutes

## Outputs

- **Gross Hours** — formatted as text — Total time from clock-in to clock-out
- **Net Hours (minus lunch)** — formatted as text — Working time after deducting lunch break
- **Decimal Hours** — Net hours in decimal format for payroll
- **Overtime** — formatted as text — Hours over 8 that qualify as overtime

## Details

This time card calculator converts your 12-hour AM/PM times to 24-hour format, computes the total gross hours, subtracts the lunch break, and presents the net working hours. It also handles overnight shifts (clocking in PM and out AM the next day).

The decimal-hours output is the format most payroll systems use. For example, 8 hours 15 minutes equals 8.25 decimal hours. Multiply by your hourly rate to get gross pay. Overtime (any net hours beyond 8) is flagged separately for easy tracking.

For weekly totals, run the calculator for each day and sum the decimal hours. Under the Fair Labor Standards Act, overtime is paid at 1.5x the regular rate for hours exceeding 40 per week, though some states (like California) also require daily overtime after 8 hours.

## Frequently Asked Questions

**Q: How does the overtime calculation work?**

A: This calculator flags overtime as any net working hours beyond 8 hours in a single day. In the US, federal overtime (FLSA) is based on 40+ hours per week, but several states including California require daily overtime after 8 hours.

**Q: Why use decimal hours for payroll?**

A: Decimal hours make payroll math easier. Instead of working with hours and minutes, you multiply a single number by the hourly rate. For example, 7.75 hours x $20/hr = $155. Common conversions: 15 min = 0.25, 30 min = 0.50, 45 min = 0.75.

**Q: Does this handle overnight shifts?**

A: Yes. If the clock-out time is earlier than the clock-in time (for example, in at 10 PM, out at 6 AM), the calculator assumes the out time is the next day and adds 24 hours accordingly.

**Q: Should I include paid breaks?**

A: Only deduct unpaid breaks (typically lunch). Paid breaks (short rest breaks of 15-20 minutes) are counted as work time under federal law and should not be subtracted. Enter 0 for lunch break if all your breaks are paid.

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Source: https://vastcalc.com/calculators/everyday/time-card
Category: Everyday Life
Last updated: 2026-04-21