Time Clock: Definition & Digital Time Clock

What is a time clock? Definition and meaning

A time clock is a device for recording working time, where employees log the start and end of their work as well as breaks. The term punch clock is also common: both terms refer to the same device, with punch clock being the somewhat older, more technical name.

The classic time clock emerged with industrialisation and served to document the workforce’s clocking in and out objectively and verifiably. Today the term increasingly stands for the digital time clock, where working hours are no longer recorded mechanically on paper but via a terminal, chip card, app or browser.

Classic time clock vs. digital time clock

The classic time clock is a mechanical or electromechanical device mounted on the wall. When clocking in and out, employees insert a punch card into the device, which stamps the time onto it. At the end of the month the card is evaluated manually.

The digital time clock replaces this process with a software-based one:

Central recording: The times feed directly into a system and do not have to be typed up.
More ways to record: Employees clock in at a terminal, at their computer or on the move via an app.
Real-time evaluation: Working time accounts, overtime and breaks are calculated automatically.

Punch card, RFID, NFC or app: the technology behind the time clock

What is used to clock in has changed over the years:

Punch card: The classic paper card that is stamped mechanically.
RFID and NFC: Employees hold a chip card or a transponder up to a terminal, which assigns the entry to the correct account.
App and browser: Working hours are recorded independently of location via a smartphone or computer, which is handy for field staff, home office and mobile teams.

So the time clock on the wall becomes a flexible, digital time recording system that fits the respective working model.

Frequently asked questions

What is the difference between a time clock and a punch clock?

Time clock and punch clock refer to the same device for recording working hours. Punch clock is the older, more technical term for the classic device that prints clocking in and out onto a punch card. Time clock is today often also used for the digital variant.

Is a digital time clock mandatory?

What is mandatory is not the time clock itself but the recording of working hours: following the ECJ ruling of 2019, employers must systematically record their employees' working time. The ruling does not prescribe which device or software is used for this, but a digital time clock is a common approach.

How does a digital time clock work?

A digital time clock records working time via a terminal with an RFID or NFC chip card, via an app or in the browser, and passes the entries directly to a time recording system. The time recording systems from projectfacts show what this looks like in practice.