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Timesheets: how to track working hours in Excel

Build a useful monthly timesheet with schedules, breaks, decimal hours, totals, pay estimates and checks before payroll.

Published 4 October 2026Reading : 3 minBy Yann Bastien
Show contents
  1. Essential columns
  2. Use real Excel date and time values
  3. Calculate a daily duration
  4. Add decimal hours
  5. Estimate pay
  6. Add a summary sheet
  7. Filters and frozen headers
  8. Should weekends be included?
  9. Check overtime week by week
  10. Part-time records
  11. Local processing and privacy
  12. End-of-month checklist
  13. Key points

A good timesheet does more than add hours. It should let you reconstruct the calculation: which day was worked, the start and end times, the break and how the final duration was obtained.

That is the difference between a table full of numbers and a record that can actually be checked.

Essential columns

For a simple monthly record, keep the date, start time, end time, break and worked duration. Add decimal hours, hourly rate, employee name, project or client reference when useful.

The Excel timesheet generator creates this structure for the selected month and year.

Use real Excel date and time values

A cell displaying “09:00” can contain either text or a true time value. They look similar but behave differently in formulas.

Excel stores time as a fraction of a day. Noon, for example, is 0.5. True time values can therefore be subtracted and formatted as durations.

Bethemesh generates usable date/time values rather than strings intended only for display.

Calculate a daily duration

For 09:00–17:00 with a 45-minute break, the span is eight hours and worked time is 7 h 15.

Our working-time guide covers split shifts and midnight crossings. When two intervals are used, keeping both source periods makes the result easier to audit.

Add decimal hours

Decimal hours are convenient when multiplying time by an hourly rate. 7 h 30 becomes 7.5 and 7 h 45 becomes 7.75.

In Excel, multiplying a time duration by 24 gives the corresponding decimal hours. Use the decimal hours converter for quick checks.

Estimate pay

At €18 per hour, 7.5 hours represent 7.5 × 18 = €135 in a simple calculation.

This does not reproduce every payroll rule. When some hours may be overtime, part-time additional hours, night work or Sunday/public-holiday work, identify them separately with the specialised calculators.

Add a summary sheet

A monthly workbook benefits from a summary showing the employee or project, period, total hours and estimated total pay when an hourly rate is supplied.

Bethemesh creates this summary alongside the detailed sheet so the headline figure remains traceable to the source rows.

Filters and frozen headers

Filtering helps isolate dates or rows. Freezing the header keeps column names visible while scrolling. Small usability features like these reduce errors in longer monthly files.

Should weekends be included?

A Monday-to-Friday template may omit weekends, while a seven-day operation needs them. The generator lets you choose.

Including a Sunday row does not determine how that Sunday is paid. See Sunday and public-holiday work for that separate question.

Check overtime week by week

A monthly total is useful for reporting but can hide weekly distribution. Under the ordinary French weekly model, overtime is counted week by week.

Keep dates so rows can be grouped by week and consult the overtime guide.

Part-time records

For part-time work, keep the contractual duration next to the time record. You can then compare the relevant period with the contract and identify possible additional hours.

See Part-time work: calculating additional hours.

Local processing and privacy

The Bethemesh generator builds the workbook locally in the browser from the entered information. That is useful for records that may contain a name, schedules or project reference.

As with any professional file, choose carefully where the workbook is stored and shared afterwards.

End-of-month checklist

Check missing days, midnight crossings, breaks that may have been deducted twice, a sample of daily durations, decimal-hour conversions and any hours that may fall under a special regime.

Key points

A useful timesheet preserves source data before producing totals. Dates, schedules and breaks should remain auditable. Decimal hours simplify calculations but do not replace the original times.

Use specialised tools to classify particular hours instead of trying to encode every employment rule into one spreadsheet formula.

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