Comparisons · 3 min read
Excel versus a working-time recording system
Short answer
Excel is electronic, but it leaves no evidence of who entered data or what was changed. A time-recording system keeps the original time and each correction.
Differences
- Who enters data: in Excel, a supervisor; in a system, each person.
- Corrections: in Excel, invisible; in a system, with reason and author.
- Report: in Excel, you have to build it; in a system, you download it.
The reform in one minute
The reform has two parts. On March 3, 2026, article 123 of the Constitution was amended to set the 40-hour workweek. On May 1, 2026, the Federal Labor Law was amended, which is where the detail is.
- The maximum working week drops from 48 to 40 hours, two hours per year, between 2027 and 2030.
- Overtime has a weekly cap: it is paid at double time up to the cap and at triple time for up to 4 more hours.
- Each company must electronically record the start and end time of each person's workday.
- Not keeping that record is fined 250 to 5,000 UMA.
- Salary and benefits cannot go down because of the reduction in hours.
What remains pending are the STPS general rules, which will define who the record applies to and what exceptions there will be. They take effect on January 1, 2027.
| 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.
Common mistakes
- Comparing the purchase price and not the cost of operating.
- Not testing the tool with the real team.
- Forgetting the staff who do not work on site.
- Not asking how an error is corrected.
- Not checking how data is downloaded if you change providers.
What to do now
- Note how your team works: on site, in the field or remotely.
- Define which report you need to deliver.
- Try two options for a week.
- Ask the team which one they used without help.
- Check how you export your data.
Related terms
Sunday premium: what it is and how it is calculated. The Sunday premium is an additional payment of at least 25% on the salary of an ordinary day for anyone who works on Sunday.
What the STPS is and what it does. The STPS is the Ministry of Labor and Social Welfare.
What is a labor severance payment (liquidación). The liquidación is what is paid when the company ends the employment relationship without just cause.
Frequently asked questions
Can I export to Excel?
Yes. What matters is that the source is a reliable record.
Can someone work more than 12 hours in a day?
No. The sum of ordinary and overtime hours cannot exceed 12 hours per day.
Does salary go down if fewer hours are worked?
No. The reform prohibits lowering wages and benefits because of the reduction in working hours.
Is the reform already in force?
Yes. The reform to the Federal Labor Law took effect on May 1, 2026. The reduction in working hours starts on January 1, 2027.
Who monitors compliance?
The Ministry of Labor and Social Welfare, through inspections.
Legal basis and sources
- Electronic working-time record: article 132, section XXXIV, of the LFT and fifth transitory provision of the decree.
- 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.