Teacher time tracking is not just an admin task.
For academies, it is evidence: who worked, when they started, when they finished, and whether the record can be trusted later if there is an inspection, a dispute or an overtime question.
That is where spreadsheets start to break.
Not because every law in Europe says the word "spreadsheet" is forbidden. The issue is practical. A normal spreadsheet can be edited, copied, overwritten, completed days later or stored in a place only one person controls. That is weak evidence when the standard is moving toward reliable, objective and accessible working-time records.
A record that is easy to change is hard to defend.
The legal direction in Europe
In Case C-55/18, CCOO v Deutsche Bank, the Court of Justice of the European Union stated that Member States must require employers to set up an objective, reliable and accessible system enabling the duration of daily working time to be measured.
The Court linked that system to the practical protection of workers' rights: maximum working time, rest periods and the ability to verify whether those rights are respected.
That matters for academies because their schedules are rarely simple:
- teachers work across several groups;
- classes can be split across morning and evening;
- substitutions happen;
- online and in-person lessons may coexist;
- cancellations and make-up classes affect the day;
- managers need a reliable record without reconstructing the week by memory.
Even when the exact rules differ by country, the direction is clear: time tracking needs to be more than a loose file.
Why spreadsheets or paper sheets fall short
Spreadsheets and paper sheets are common because they feel simple: teacher names, date, start time and end time.
The problem is that teacher time tracking is not just a table. It is employment evidence. And employment evidence needs to hold up if there is an inspection, a dispute or a question about hours worked.
In practice, manual records usually fail in predictable ways: they can be edited without a clear trail, they are filled in late, they live in one file or folder, they are not always available when requested and they force managers to reconstruct schedules, substitutions or absences by hand.
The goal is not to have a sheet. The goal is to have a daily record that is reliable, traceable and easy to retrieve.
The good news: Clasbi handles teacher time tracking for you
Clasbi is designed so teacher time tracking no longer depends on loose sheets, spreadsheet versions or manual reminders.
The flow is simple: each teacher clocks in and out from mobile, the record is saved in the system and admins can review or export it when needed.
That way, time tracking stops being a daily worry and becomes part of how the academy runs.
Clasbi also connects time tracking with the real operation of the academy:
- Mobile clock-in and clock-out: teachers do not depend on reception or a physical sheet.
- Saved start and end times: the record keeps the concrete entry and exit time.
- Admin review: the centre can detect gaps, missing entries or inconsistencies.
- Exportable data: information can be extracted when it needs to be reviewed or shared.
- Academy context: time tracking sits alongside teachers, classes, schedules, roles and attendance.
- Simple daily use: if the system is easy, people use it at the right moment instead of reconstructing it later.

This does not replace legal advice. Every academy should validate its specific obligations with its labour advisor, jurisdiction and employment agreements.
What Clasbi does is cover the operational layer that spreadsheets or paper sheets usually handle badly: easy clock-in, saved records, admin review and exportable data when needed.
If you want to see how this would work in your centre, tell us how your academy operates and we will show you Clasbi with your teachers, schedules and rules.
Note: this article is operational guidance, not legal advice. For specific legal obligations, employment agreements or local rules, consult a qualified labour advisor.



