Calculators · 3 min read
Weekly working hours calculator
Short answer
Enter the hours per day and the days per week. The calculator compares against the maximum workday for the year you choose and tells you how many hours are overtime.
How to do the math by hand
A schedule of 8 hours, 6 days a week, adds up to 48 hours. In 2027 the maximum is 46: 2 hours are left over, which are overtime or must be reorganized.
| Year | Maximum working hours | Double-time overtime | Triple-time overtime |
|---|---|---|---|
| 2026 | 48 h | 9 h | 4 h |
| 2027 | 46 h | 9 h | 4 h |
| 2028 | 44 h | 10 h | 4 h |
| 2029 | 42 h | 11 h | 4 h |
| 2030 | 40 h | 12 h | 4 h |
Decree published in the Official Gazette of the Federation on May 1, 2026, second and fourth transitory provisions, and article 68 of the LFT. Each change applies from January 1.
Why everything starts with the working-time record
Almost every labor calculation starts from the same data point: how many hours and which days each person worked. If that data is uncertain, so is everything else.
- Overtime: it is paid according to the hours of each week.
- Sunday premium and rest days worked: they depend on which days were worked.
- Aguinaldo and profit sharing: they use the days worked in the year.
- Labor lawsuits: the company must prove the working time.
Since 2026, the Federal Labor Law requires that record to be electronic, per person, with start and end time.
Common mistakes
- Entering net pay instead of gross.
- Not changing the shift type when it is a night or mixed shift.
- Treating the result as if it were the payslip.
- Forgetting that the UMA and the minimum wage change every year.
- Not noting what data the calculation was made with.
What to do now
- Confirm the current value for the year.
- Have each person's daily salary at hand.
- Check the days and hours worked in your record.
- Do the math and keep it.
- Validate it with your accountant.
Related terms
Night shift: schedule and maximum length. The night shift is the one worked between 8:00 p.m. and 6:00 a.m.
What is NOM-037 on telework. NOM-037 sets the safety and health conditions for telework.
What is the integrated daily salary (SDI). The integrated daily salary adds to the daily-rate salary the benefits the person receives, such as aguinaldo and vacation premium.
Frequently asked questions
Does it consider the daily maximum?
It warns you if a day exceeds 12 total hours.
Where does the data come from?
From the Federal Labor Law and from the official values published by INEGI and the National Minimum Wage Commission.
Do these values change every year?
Yes. The UMA is updated every February 1 and the minimum wage every January 1. Always confirm the current value.
Are the amounts gross or net?
Gross. They do not account for taxes or social security contributions.
Can I use this for my payroll?
It works as a reference. Your accountant should do or validate the payroll calculation.
Legal basis and sources
- Working hours: articles 58 to 64 of the LFT and second transitory provision of the decree.
- Decree amending the Federal Labor Law on the reduction of the working week. Official Gazette of the Federation, May 1, 2026.
- Federal Labor Law, current text. Chamber of Deputies.
How we write this content. The Sicheca team writes it from the official text of the law. When something is not yet defined by the authority, we say so. It is general information and does not replace the advice of a lawyer or an accountant.