FLSA 29 CFR § 785.48 & Payroll Arithmetic

20 Minutes as a Decimal for Payroll & Timecards (0.33 Hours)

20 minutes expressed as a decimal hour is exactly 0.3333... hours, or 0.33 hours rounded to two decimal places for standard payroll processing. To calculate this mathematically: divide the number of minutes (20) by the total minutes in an hour (60): 20 ÷ 60 = 1/3 = 0.3333 hours. When calculating gross wages for an employee earning $24.00/hour who worked 8 hours and 20 minutes, compute 8.33 × $24.00 = $199.92.

Standard Minutes to Decimal Hours Payroll Conversion Reference (5-Minute Intervals)

Official conversion formulas: Decimal = Minutes ÷ 60. Commercial payroll uses 2 decimal places.

MinutesMathematical FractionExact DecimalStandard 2-Decimal PayrollQuarter-Hour 7-Min Rounding
5 Minutes5/60 (1/12)0.0833 hrs0.08 hrs0.00 hrs (Rounds down to :00)
10 Minutes10/60 (1/6)0.1667 hrs0.17 hrs0.25 hrs (Rounds up to :15)
15 Minutes15/60 (1/4)0.2500 hrs0.25 hrs0.25 hrs (:15 quarter hour)
20 Minutes20/60 (1/3)0.3333 hrs0.33 hrs0.25 hrs (Rounds down to :15)
25 Minutes25/60 (5/12)0.4167 hrs0.42 hrs0.50 hrs (Rounds up to :30)
30 Minutes30/60 (1/2)0.5000 hrs0.50 hrs0.50 hrs (:30 half hour)
35 Minutes35/60 (7/12)0.5833 hrs0.58 hrs0.50 hrs (Rounds down to :30)
40 Minutes40/60 (2/3)0.6667 hrs0.67 hrs0.75 hrs (Rounds up to :45)
45 Minutes45/60 (3/4)0.7500 hrs0.75 hrs0.75 hrs (:45 three-quarter hour)
50 Minutes50/60 (5/6)0.8333 hrs0.83 hrs0.75 hrs (Rounds down to :45)
55 Minutes55/60 (11/12)0.9167 hrs0.92 hrs1.00 hrs (Rounds up to 1.00)
60 Minutes60/60 (1/1)1.0000 hrs1.00 hrs1.00 hrs (Full hour)

Statutory Rules & Overtime Thresholds

Threshold Rate Statute Description
Exact Decimal Conversion Formula Minutes ÷ 60 Standard Mathematical Conversion 20 minutes ÷ 60 = 0.3333 recurring hours (recorded as 0.33 on standard timesheets).
FLSA 7-Minute Rounding (Quarter Hour) Rounds to :15 (0.25 hrs) 29 CFR § 785.48(b) Under 15-minute rounding: minutes 8 through 22 round to 15 minutes (0.25 hrs). 20 falls in this bracket.
Gross Pay Calculation Example ($25.00/hr) 0.33 hrs × $25.00 = $8.25 FLSA Wage Arithmetic 20 minutes worked at $25.00/hr equals exactly $8.25 in gross wage compensation.

Statutory Legal Citations

  • 29 CFR § 785.48(b) (Rounding Practices in Time Recording)
  • FLSA Section 6 & Section 7 (Computing Regular Rate of Pay)
  • Defense Contract Audit Agency (DCAA) Timekeeping Guidance

Frequently Asked Questions

What is 20 minutes as a decimal for payroll?
20 minutes is 0.33 hours in decimal format (20 divided by 60 = 0.3333, rounded to two decimal places as 0.33).
Under the FLSA 7-minute rule, what does 20 minutes round to?
Under the federal 7-minute rounding rule (29 CFR § 785.48), punch times between 8 and 22 minutes past the hour round to the 15-minute mark (:15 or 0.25 hours). Therefore, 20 minutes rounds to 0.25 hours.
How do you convert 8 hours and 20 minutes to decimal?
Keep the 8 whole hours and convert the 20 minutes: 20 ÷ 60 = 0.33 hours. Combining them gives 8.33 decimal hours. Multiply 8.33 by your hourly wage to compute gross pay.