What makes an overtime record useful?

A total such as “about 80 extra hours” is difficult to assess. A useful record shows when the work happened and why the employer may be responsible for it. Reconstructing that detail is not about producing a perfect spreadsheet; it is about separating what can be demonstrated from what remains uncertain.

Use one line for each day

Record the date, scheduled time, actual start and finish, break duration, workplace or assignment, and additional task. Preserve original sources such as clock records, calendar entries, dispatch logs or emails. Do not rewrite an original message merely to make the chronology look neater.

Link hours to instruction or knowledge

Payment disputes often turn not only on duration but on whether overtime was ordered, approved, tolerated or necessary to complete assigned work. Note the request, manager, deadline and any later acknowledgement. A message asking for a report by morning may matter differently depending on when the task was assigned and what workload was known.

Keep categories honest

Label a timestamped entry as documented, a regular routine supported by witnesses as recollected, and an unexplained gap as unresolved. Avoid automatically treating a commute, social event, voluntary early arrival or every moment on business premises as working time.

Read the governing documents

Place the chronology beside the contract, collective agreement or works agreement. Look for approval procedures, working-time accounts, flat overtime clauses and Ausschlussfristen—contractual or collectively agreed exclusion periods that may require claims to be raised promptly.

A careful record cannot guarantee that every hour is accepted. It can turn an indistinct disagreement into dated questions that payroll, HR, a union or legal adviser can actually answer.