Enter your start time, end time, and break time to automatically calculate daily work hours, weekly/monthly totals, and overtime.
Select a date and enter your start and end times using the HTML5 time picker.
Enter your break time in minutes (e.g., 60 for a 1-hour lunch break).
Click the "Add" button to add the entry to your timesheet.
Add entries for each working day and the weekly/monthly totals will be calculated automatically.
Review the summary cards below the table for totals and averages.
Example 1 — Standard Office Week
Mon–Fri, 09:00–18:00, 60 min break → 8h net work per day
Weekly total: 40h → No overtime
Example 2 — With Overtime
09:00–21:00, 60 min break → 11h net work per day
Daily overtime: 3h (over 8h limit)
5-day week total: 55h → Weekly overtime: 15h
Example 3 — Part-Time
10:00–15:00, 30 min break → 4.5h net work per day
5-day week total: 22.5h → No overtime
Under the Korean Labor Standards Act Article 50, the statutory working hours are 40 hours per week (8 hours per day).
Extended work cannot exceed 12 hours per week, making 52 hours the maximum (Article 53). Applies to companies with 300+ employees since July 2018, 50+ since Jan 2020.
Extended work beyond statutory hours requires a 50% premium on top of the standard hourly wage (Article 56).
Work performed between 10 PM and 6 AM incurs an additional 50% premium (Article 56).
At least 30 minutes break for 4-hour shifts, at least 60 minutes for 8-hour shifts (Article 54).
If daily work hours exceed 8 hours, the excess is counted as daily overtime. If the weekly total exceeds 40 hours, additional weekly overtime is generated. This calculator displays daily overtime per row and shows the cumulative total in the summary.
Data persists within your browser session only. For long-term tracking, we recommend copying the table data or managing it in a spreadsheet.
Yes. For split shifts (morning and afternoon), add the same date twice and both records will be included in the totals.
This calculator tracks work hours and overtime hours only. Night shift (10 PM–6 AM) and holiday premiums must be calculated separately.
If the 'Overtime Hours' in the summary exceeds 12 hours for a given week, you've hit the 52-hour cap. Enter data week by week to monitor this.
Under Article 54 of the Labor Standards Act, break time is not counted as working time. Net work hours = (end time – start time) – break duration.
The Work Hours Timesheet Calculator is an online tool that helps employees record daily start and end times and automatically compute regular and overtime hours.
Daily net work hours = (end time - start time) - break duration. For example, 09:00 start, 18:00 end, 60-minute break = (9 hours) - 1 hour = 8 hours.
Under Korean labor law, the statutory limit is 8 hours/day and 40 hours/week. Any work beyond these limits is classified as extended work (overtime) and requires a 50% wage premium.
Introduced in 2018, the 52-hour cap limits weekly work to 52 hours (40 statutory + 12 extended). Violations can result in up to 2 years imprisonment or fines up to 20 million KRW for employers.
Accurate work records are essential for payroll verification, annual leave calculation, severance pay computation, and dispute resolution. Building a daily habit of recording your hours is strongly recommended.