In-depth guide · Hours
How to Calculate Hours Worked on a Time Card
How to calculate hours worked from in and out punches: subtract, remove unpaid meal breaks, handle overnight and DST shifts, convert to decimal.
Updated · 11 min read
5 guides · updated October 22, 2026
Hours & time cards
Adding up a time card the right way: minutes and decimal hours, breaks, overnight shifts, daylight saving time and 24-hour clocks — worked through on real examples.
Calculators for this topic: Time card calculator · Hours calculator · Time to decimal calculator · Add hours and minutes · Military time converter
Guide · Hours
Daylight Saving Time and Night Shifts: 7 Hours or 9?
On a daylight saving night, a 10 PM to 6:30 AM shift is 9 hours in November and 7 in March. The 2026 and 2027 dates, the pay rule and the time card entry.
Updated · 5 min read
Guide · Hours
How to Fill Out a Weekly Time Card
Fill out a weekly time card step by step: the header, each day’s in and out times, meal breaks, overnight shifts, daily and weekly totals, and signing it.
Updated · 6 min read
Guide · Hours
Military Time on Time Cards: 12 AM, 12 PM and 2400
Read 24-hour times on a time card: add 12 to PM hours, 1200 is noon, 0000 is midnight and 2400 ends the day. A full chart, plus overnight shifts.
Updated · 5 min read
Guide · Hours
Minutes to Decimal Hours: Why 8.30 Is Not 8:30
Convert minutes to decimal hours by dividing by 60. A 0–60 minute chart, the rounding rule, and the payroll errors that come from mixing 8:30 and 8.30.
Updated · 4 min read
Other topics: Overtime rules · Pay & the overtime deduction · Rules & records · All guides