Digital Time Tracking Under LOV 89: A 2026 How-To Guide

Switching from paper attendance sheets to a digital working time records system is no longer a luxury for companies operating in Denmark, it is quickly becoming a practical necessity. Under LOV 89, Denmark's implementation of the EU Working Time Directive, employers are legally required to maintain verifiable records of each worker's daily and weekly hours. For Polish construction crews rotating between worksites, a dog-eared paper register stored in a site hut simply does not hold up when Arbejdstilsynet inspectors arrive. This guide walks you through every step of replacing Excel spreadsheets and paper logs with a legally sound digital solution.

Why Paper and Excel Are No Longer Enough

The Court of Justice of the European Union's landmark ruling in the CCOO case established that EU member states must require employers to set up an objective, reliable and accessible system for measuring daily working time. Denmark transposed this obligation through LOV 89, and Arbejdstilsynet, the Danish Working Environment Authority, is the body empowered to audit compliance. An Excel file saved on one manager's laptop is neither objective nor reliably accessible: it can be edited without a trace, it is not time-stamped at the moment of registration, and it is invisible to workers who need to verify their own records.

For Polish workers employed through staffing agencies or on fixed-term contracts, poor record-keeping creates a second layer of risk. Hours that cannot be documented are hours that may be disputed when calculating overtime pay, holiday entitlement, or social security contributions back in Poland. If you are already thinking about how cross-border earnings are reported, the Polish PIT and Danish Skat: Tax Guide for Rotational Workers 2026 explains exactly how documented work hours feed into your tax obligations in both countries.

Step 1: Check Your Legal Obligations Before You Choose a Tool

Before purchasing any software, confirm which rules apply to your specific workforce. Under LOV 89, the obligation to record working time covers virtually all employees, including posted workers and agency staff. If your company posts workers from Poland under the EU Posted Workers Directive, Danish working time rules apply for the duration of the posting. Verify this with your legal adviser or consult the official guidance published by Arbejdstilsynet. Companies with collective agreements may have slightly different thresholds for overtime triggers, so check your applicable overenskomst as well.

Step 2: Gather the Documents and Data You Will Need

A digital system is only as good as the data fed into it. Before going live, collect the following for every worker: full legal name as it appears on their Danish CPR registration or Polish PESEL documentation, contracted weekly hours, applicable wage rate and any agreed overtime multipliers, start date of the current contract, and, for posted workers, the A1 certificate issued by ZUS confirming continued Polish social security coverage. Having this data clean and verified from day one prevents the most common audit headaches later. For a detailed look at what your employment contracts should contain, see Temporary Work Contracts in Denmark: Key Clauses for Polish Construction Workers 2026.

Step 3: Choose and Configure Your Digital System

The market offers a range of tools, from dedicated workforce management platforms to mobile-first apps designed for construction sites. Whatever you choose, the system must satisfy three non-negotiable criteria set by the CCOO ruling and reflected in Danish enforcement practice: records must be created at the time of the event (not reconstructed later), they must be accessible to the worker, and they must be tamper-evident, meaning any edit is logged with a timestamp and the identity of the person who made the change.

For a hypothetical example: an agency employing around thirty Polish workers across two Copenhagen worksites might configure a mobile app so that each worker clocks in and out by scanning a QR code posted at the site entrance. The system automatically flags any shift exceeding the daily rest period thresholds under LOV 89 and sends the worker a daily summary by SMS. The manager receives a weekly exception report highlighting potential overtime. This kind of automated alerting is what transforms a record-keeping tool into a genuine compliance asset.

When configuring the system, set the working week definition to match Danish law, typically Monday through Sunday, and ensure the system calculates the reference period for average weekly hours correctly. LOV 89 allows averaging over a reference period, but the length of that period depends on whether a collective agreement applies.

Step 4: Roll Out and Train Your Team

Technology fails when people do not understand why it exists. Run a short briefing, in Polish if necessary, explaining that the digital log protects the worker just as much as it protects the employer. A worker who clocks out correctly has documented proof of every hour worked, which matters enormously if a wage dispute arises. Appoint one site supervisor as the system administrator responsible for resolving missed clock-ins on the same working day, not at the end of the week.

Post written instructions at the site in both Danish and Polish. Under PIP (Poland's National Labour Inspectorate) guidelines, Polish workers have the right to understand their working time records, and providing documentation in their language is considered good practice even when they are working abroad.

Step 5: Submit Records and Respond to Audits

Arbejdstilsynet does not require employers to proactively submit working time records to a central portal, the obligation is to maintain them and produce them on request during an inspection. Ensure your system can export a clear, readable report for any selected date range within minutes. Store records for at least the period required under Danish employment law; consult at.dk for the current retention requirements. For posted workers, ZUS may also request documentation during a review of the A1 certificate, so keep a parallel copy accessible to your Polish HR contact. More broadly, robust time records become critical evidence if a workplace accident in Denmark triggers an investigation into fatigue or excessive hours.

Common Mistakes to Avoid

The most frequent error is allowing supervisors to enter clock-in times on behalf of workers without the worker's confirmation. This destroys the objectivity requirement and is exactly what inspectors look for. A close second is failing to record short breaks correctly: if a break is unpaid, it must be logged as such, not simply omitted from the record. Third, many companies configure their system for the country where the software vendor is based, inheriting default rules that do not match Danish law, always verify the overtime thresholds, rest period alerts and reference period settings against LOV 89 and your applicable collective agreement.

Finally, do not treat the digital system as a set-and-forget solution. Schedule a quarterly internal audit: pull a sample of records, cross-check them against payslips, and confirm that every worker's total hours fall within the legal limits. Catching a systematic error early is far less costly than discovering it during an Arbejdstilsynet inspection. The transition from paper to digital is a genuine improvement in worker protection, but only when it is implemented with the same care and attention that the law demands.