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Time Card & Punch Clock Engine

Time Clock Minutes to Decimal

Calculate daily shift hours directly from your clock-in and clock-out punch times. Automatically deduct unpaid meal breaks and convert net work duration into decimal hours for payroll (e.g., 09:00 AM to 05:30 PM with 30m break = 8.00 worked hours).

24h / AM-PM Shift Punch
0–9 Precision Places
100% Free Tool
Worked Hours
8.00 worked hours
Shift: 510m | Break: 30.00m | Net: 480.00m

Live Conversion Diagram

TIME CLOCK ENGINE
8.00 NET HRS
INPUT 09:00 to 17:30
FORMULA (510 - 30.00) / 60
OUTPUT 8.00 worked hours
SHIFT SUMMARY Shift: 510m | Break: 30.00m | Net: 480.00m
DAY PROGRESS (8H BASE)
100%
Timesheet Workflow

How Time Clock Shift Calculation Works

Converting employee time punch cards into payroll decimal hours follows three simple steps:

01. GROSS SHIFT TIME

Clock Out − Clock In

Calculate total minutes between arrival and departure (09:00 to 17:30 = 510 minutes).

02. DEDUCT UNPAID BREAKS

Gross Min − Break Min

Subtract meal or unpaid break duration (510 − 30 = 480 net working minutes).

03. CONVERT TO DECIMAL

Net Minutes ÷ 60

480 ÷ 60 = 8.00 decimal hours ready for timesheet submission.

Minutes Reference

Minutes to Decimal Conversion Chart

A complete reference table showing every minute value (1–60) and its decimal hour equivalent for timesheets and payroll.

1 min
0.02
2 min
0.03
3 min
0.05
4 min
0.07
5 min
0.08
6 min
0.10
7 min
0.12
8 min
0.13
9 min
0.15
10 min
0.17
11 min
0.18
12 min
0.20
13 min
0.22
14 min
0.23
15 min
0.25
16 min
0.27
17 min
0.28
18 min
0.30
19 min
0.32
20 min
0.33
21 min
0.35
22 min
0.37
23 min
0.38
24 min
0.40
25 min
0.42
26 min
0.43
27 min
0.45
28 min
0.47
29 min
0.48
30 min
0.50
31 min
0.52
32 min
0.53
33 min
0.55
34 min
0.57
35 min
0.58
36 min
0.60
37 min
0.62
38 min
0.63
39 min
0.65
40 min
0.67
41 min
0.68
42 min
0.70
43 min
0.72
44 min
0.73
45 min
0.75
46 min
0.77
47 min
0.78
48 min
0.80
49 min
0.82
50 min
0.83
51 min
0.85
52 min
0.87
53 min
0.88
54 min
0.90
55 min
0.92
56 min
0.93
57 min
0.95
58 min
0.97
59 min
0.98
60 min
1.00
Timesheet Multiplier

Common Payroll Time Periods

Quick payroll reference showing shift durations, their decimal values, and pay calculations at $20/hr.

Time Period Decimal Hours Pay Example ($20/hr)
6 min0.10$20/hr → $2.00
15 min0.25$20/hr → $5.00
20 min0.33$20/hr → $6.67
30 min0.50$20/hr → $10.00
45 min0.75$20/hr → $15.00
1 hour1.00$20/hr → $20.00
1h 15m1.25$20/hr → $25.00
1h 30m1.50$20/hr → $30.00
1h 45m1.75$20/hr → $35.00
2 hours2.00$20/hr → $40.00
4 hours4.00$20/hr → $80.00
7h 30m7.50$20/hr → $150.00
8 hours8.00$20/hr → $160.00
8h 30m8.50$20/hr → $170.00
10 hours10.00$20/hr → $200.00
Reverse Lookup

Decimal Hours to Hours & Minutes

Translate decimal time back into standard clock hours and minutes for schedules and invoices.

Decimal Hours Hours : Minutes Decimal Hours Hours : Minutes
0.100:061.251:15
0.200:121.501:30
0.250:151.751:45
0.300:182.002:00
0.330:202.502:30
0.400:243.003:00
0.500:304.004:00
0.600:365.005:00
0.670:406.006:00
0.700:427.507:30
0.750:458.008:00
0.800:488.508:30
0.830:5010.0010:00
0.900:5412.0012:00
1.001:0024.0024:00
FAQ

Frequently Asked Questions About Time Clock Conversion

Subtract the clock-in time from the clock-out time to find the gross duration, deduct any unpaid lunch break in minutes, and divide the remaining net minutes by 60. For example, 09:00 AM to 05:30 PM with a 30-minute lunch = (510 − 30) ÷ 60 = 8.00 decimal hours.
If your clock-out time is earlier than your clock-in time (e.g. In at 10:00 PM, Out at 06:30 AM), the calculator automatically adds 24 hours to cross the midnight boundary accurately.
Under labor laws (including FLSA in the US), standard meal breaks (typically 30 minutes or longer) are non-compensable unpaid time and must be removed prior to hourly pay calculations.