How Many Hours Is 7am to 5pm?

10 hours
= 10.00 in decimal hours
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What about lunch?

Deducting an unpaid lunch break changes your paid hours:

Lunch breakPaid hoursDecimal
None10 hours10.00
20 min *9h 40m9.67
30 min9h 30m9.50
45 min9h 15m9.25
60 min9 hours9.00