Guides

Short, practical explanations of the rules behind the calculators — the maths behind hour totals, decimal conversions and working-day counts.

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How to Calculate Work Hours CorrectlyWork & Hours
The formula for hours worked, paid vs unpaid breaks, overnight shifts, decimal hours and the mistakes that quietly cost people money each pay period.
Decimal Hours ExplainedConversions
Why payroll systems want 7.75 instead of 7:45, how to convert minutes to decimal hours, and why 7:30 is not 7.30.
Counting Business DaysDates
How to count working days between dates, inclusive vs exclusive counting, weekends, holidays and common mistakes.
How to Calculate Your Lunch Return TimeWork & Hours
How to work out what time you return from a 30, 45 or 60 minute lunch, with the formula, worked examples, noon and midnight crossings and common mistakes.
Time & Decimal Hours ReferenceConversions
A printable reference of minutes-to-decimal-hours conversions (1–60 min), common workday lengths, break deductions, timesheet examples and the rounding rules payroll uses.
Timesheet Hours & Payroll Calculations ExplainedWork & Hours
How timesheet hours are calculated from start and end times, breaks, decimal hours, weekly totals, overtime and rounding — with realistic worked examples.
Overtime Hours ExplainedWork & Hours
Regular vs overtime hours, thresholds, multipliers and worked pay calculations — with a clear note that actual entitlement depends on your employer and applicable law.