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An open-air festival with 800 employees across 40 hectares, twelve parallel shifts, four entry gates, and not a single fixed office – how do you ensure that every hour is correctly recorded and every overtime hour is traceable? Traditional time clocks are out of the question, Excel spreadsheets get lost in the chaos, and manual checks cost managers time they don't have. GPS-based time tracking automatically links an employee's location to the clock-in and clock-out process, solving one of the most pressing operational challenges in the event industry.
GPS time tracking uses the smartphone location data of an employee to automatically validate clock-ins and clock-outs. The principle: the event organizer defines a so-called geo-fence in the system – a digital perimeter around the event grounds. When an employee enters this area and starts their shift via the staff app, the GPS signal confirms that the person is actually on site. If they leave the premises without clocking out properly, the system can automatically trigger an alert.
The GPS method is often supplemented by QR code check-ins: at each entrance, stage, or deployment point, an individual QR code is displayed. Scanning it records the exact location within the premises – typically with an accuracy of 3 to 5 meters. Both methods combined reduce buddy-punching (clocking in for absent colleagues) to virtually zero and provide seamless, legally defensible time records – a standard that should be actively pursued by all EU employers since the ECJ ruling of May 14, 2019 (Case C-55/18) and the resulting obligation for objective, reliable time recording.
The legal basis is primarily the Working Hours Act (ArbZG) and – since the Federal Labour Court ruling of September 13, 2022 (Case 1 ABR 22/21) – the judicially established obligation for complete working time documentation. Pursuant to § 16 para. 2 ArbZG, employers are required to record working time exceeding eight hours; the BAG ruling effectively extends this to all working time. Violations can be punished with fines of up to €15,000 per individual case.
These requirements become more stringent in the event context: short-term employees, mini-jobbers, and temporary workers are subject to the same documentation obligations as permanent staff. Especially with mixed teams – core staff, freelancers, volunteers – a unified platform for is indispensable to ensure no group of people falls through the cracks due to different tracking tools.
Stationary systems – terminals, time clocks, or NFC cards – require all employees to pass through the same physical point. On a trade fair grounds with 15 halls or an open-air concert with five stages, this is illusory. A comprehensive overview of the various approaches can be found in the article on – here we focus on the specific added value of the GPS variant.
The key difference lies in decentralization: GPS time tracking works anywhere there is a mobile network or Wi-Fi. A 2023 study by the Fraunhofer IAO found that companies using mobile, location-based time tracking reduced their administrative effort for post-processing punch card data by an average of 67 percent. For events where often only 24 to 48 hours remain for complete billing after teardown, this time saving is directly measurable in euros.
GPS location data is classified as personal data under Art. 4 No. 1 GDPR and is subject to the principle of data minimization (Art. 5 para. 1 lit. c GDPR). This means in practice: continuous monitoring outside of working hours is not permitted. Tracking may only be active during the agreed shift, and employees must be transparently informed before starting work – ideally through a digital consent declaration stored in the staff app.
If a works council is present, § 87 para. 1 No. 6 BetrVG applies: the introduction of technical facilities for monitoring behavior or performance requires co-determination. Event organizers and staffing service providers using eventra.app benefit from the fact that the platform is hosted in Europe and operates in full compliance with the GDPR – location data is stored pseudonymously and automatically deleted after the legally required retention period after the event. Third-country transfers, as is standard with US-based HR tools, are completely eliminated.
Incorrect or manipulated time tracking causes significant costs in the event industry every year. An internal analysis by a German festival organizer (approx. 600 seasonal workers) showed that without digital validation, around 8 percent of all recorded working hours were incorrect – due to typing errors, forgotten clock-outs, or deliberate rounding up. At a wage of €14 per hour (minimum wage 2025: €12.82, many event jobs pay more) and 6,000 shift hours per event, this quickly results in a four-figure correction requirement.
What can go wrong and what legal consequences are threatened is described in detail in the article on . GPS validation addresses three points: First, the location confirms that the person was actually at the deployment site. Second, the two-factor logic (QR code + GPS) prevents colleagues from clocking in for each other. Third, every check-in generates an immutable timestamp with coordinates that can serve as evidence in disputes.
The greatest efficiency gain arises when time tracking is not operated in isolation but is seamlessly integrated into the upstream planning process. Well-thought-out provides the target data – who should be where and when – which the system then reconciles with GPS-verified actual data. If an employee deviates more than 15 minutes from the planned shift start, eventra.app can automatically notify the responsible shift manager before bottlenecks arise.
Practical example: At a Bundesliga home match day for a first-division club with 420 stewards and 80 catering staff distributed across 12 sectors, geo-fences per sector allow you to track exactly which sector is understaffed at a given time. Shift managers receive a push notification on their smartphone and can organize reinforcements from neighboring sectors within minutes – without radio chaos and without paperwork.
GPS time tracking generates raw data – this data must be converted into billable values. In eventra.app, this happens fully automatically: validated GPS timestamps are converted into time records after the shift ends, surcharges (night work from 11:00 PM pursuant to § 6 ArbZG, Sunday work under § 11 ArbZG) are added on a rule-based basis, and the completed document is ready for DATEV or Stotax export.
What previously took two to three days of manual post-processing – merging hours from various lists, manually identifying overtime, labeling night shifts – the platform handles in a matter of minutes. The entire process from GPS booking to completed is thus fully digitized and audit-proof – a decisive advantage during audits by the German Pension Insurance or the tax office.
The most common problems when getting started can be reduced to three areas:
Network coverage: On some festival grounds – especially in rural areas – mobile reception is patchy. Solution: eventra.app supports offline mode with local intermediate storage; as soon as network is available, all bookings are synchronized.
Workforce acceptance: Employees sometimes perceive GPS tracking as a monitoring tool. Transparent communication – what is recorded, how long it is stored, who has access – is crucial. A brief info session during onboarding reduces the rejection rate to under 5 percent based on experience.
Device availability: Not all temporary workers own a compatible smartphone. In this case, it is recommended to provide QR code terminals at central points as a fallback solution.
Another aspect: The geo-fence configuration should be completed in the planning phase – at least two weeks before the event. Based on the site plans, polygons are drawn around all relevant deployment areas, including backstage, catering zones, and tech depots. This saves valuable time on the event day and prevents employees from clocking in at the wrong locations.
GPS-based time tracking is no longer a luxury but an operational standard for any organizer deploying more than 50 employees at an event. It meets the legal requirements of the ArbZG and BAG case law, protects against manipulation, speeds up billing, and provides the transparency that modern deployment planning needs. At the same time, it must be implemented in compliance with GDPR – with clear limits on tracking, transparent communication, and European data storage.
eventra.app combines GPS validation, QR code check-in, automated surcharge calculation, and DATEV export in a single platform – developed for the specific requirements of the event industry. If you would like to find out how these features can be integrated into your existing workflow, a free demo is available.