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Calculate total daily and weekly work hours, unpaid lunch and break deductions, decimal time conversions, and standard/overtime/double-time payroll wages.
T_{ ext{raw}} = T_{ ext{out}} - T_{ ext{in}}. Net shift hours: H_{ ext{net}} = T_{ ext{raw}} - T_{ ext{unpaid break}}.H_{ ext{decimal}} = ext{Hours} + left( rac{ ext{Minutes}}{60}
ight).H_{ ext{reg}} = min(H_{ ext{total}}, 40). Overtime hours H_{ ext{OT}} = max(0, H_{ ext{total}} - 40) (or daily > 8h in California/Alaska). ext{Gross Pay} = (H_{ ext{reg}} imes R) + (H_{ ext{OT}} imes 1.5R) + (H_{ ext{DT}} imes 2.0R).Divide the number of minutes by 60. For example: 15 minutes = 15/60 = 0.25 hours; 30 minutes = 30/60 = 0.50 hours; 45 minutes = 45/60 = 0.75 hours; 10 minutes = 10/60 = 0.167 hours. Add this decimal fraction to the whole hour value.
Under the US Fair Labor Standards Act (FLSA), covered non-exempt employees must receive overtime pay for hours worked over 40 in a designated 7-day workweek at a rate not less than time and one-half (1.5x) their regular rate of pay. Federal law does not mandate daily overtime, though some states (e.g. California) require daily overtime after 8 hours.
Under federal law, rest breaks lasting 20 minutes or less must be counted as paid work hours. Bona fide meal periods (typically 30 minutes or more where the employee is completely relieved from all work duties) are unpaid and subtracted from total hours.
Under FLSA guidelines (29 CFR 785.48(b)), employers may round employee clock times to the nearest 15-minute increment (quarter hour). Under the 7-minute rule, 1 to 7 minutes are rounded down to the previous quarter hour, while 8 to 14 minutes are rounded up to the next quarter hour.