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Basetime

Time card calculator: a week of hours and overtime

Fill in a week of start and end times and read the total two ways — hours and minutes, and decimal hours for payroll. Breaks come off, overnight shifts are handled, overtime splits at whatever threshold you set, and an hourly rate turns it into gross pay. Unlike other time card calculators, a shift that runs across a daylight-saving change is counted as the time that actually passed rather than the time the clock suggests.

DayInOutBreakHoursDecimal
Monday——
Tuesday——
Wednesday——
Thursday——
Friday——
Saturday——
Sunday——
0:00
week total
0.00
decimal hours

0 days worked. Add an hourly rate below to see the pay.

Overtime, rounding and rate

Thresholds are yours to set, not ours to assume: 40 hours a week and 8 a day are the American convention, most of Europe runs shorter, and the legal limit where you work may be neither. Nothing here is legal advice — it is arithmetic on the numbers you enter. Times are read in UTC, which is only visible on the two days a year the clocks move.

The hour that goes missing twice a year

Subtracting one clock reading from another is right for 363 days a year. On the two days a zone changes its clocks it is wrong by an hour, and it is wrong for exactly the people least able to argue with it: a night shift from 22:00 to 06:00 across the spring change is seven hours, not eight, and across the autumn change it is nine. The clock says eight both times.

This calculator converts both ends of every shift into real instants in your own time zone and measures the gap, so what it reports is the time that passed rather than the time the numbers suggest. When the two differ, the row says so and shows both figures — the point is not to quietly produce a different number, it is to show you the hour and let you take it to whoever writes the cheque.

Your zone is read from your browser. Nothing is asked for and nothing is sent anywhere; on the other 363 days it makes no difference at all.

Minutes to decimal hours, every minute of the hour

Payroll multiplies hours by a rate, and multiplication wants one number rather than two. Add the decimal to the whole hours: 7 hours 20 minutes is 7.33.

Minutes and their decimal-hour equivalent
Min Decimal
0 .00
1 .02
2 .03
3 .05
4 .07
5 .08
6 .10
7 .12
8 .13
9 .15
10 .17
11 .18
12 .20
13 .22
14 .23
Minutes and their decimal-hour equivalent
Min Decimal
15 .25
16 .27
17 .28
18 .30
19 .32
20 .33
21 .35
22 .37
23 .38
24 .40
25 .42
26 .43
27 .45
28 .47
29 .48
Minutes and their decimal-hour equivalent
Min Decimal
30 .50
31 .52
32 .53
33 .55
34 .57
35 .58
36 .60
37 .62
38 .63
39 .65
40 .67
41 .68
42 .70
43 .72
44 .73
Minutes and their decimal-hour equivalent
Min Decimal
45 .75
46 .77
47 .78
48 .80
49 .82
50 .83
51 .85
52 .87
53 .88
54 .90
55 .92
56 .93
57 .95
58 .97
59 .98

Rounding, and what it costs

Most employers round each punch to a mark rather than paying to the minute. The steps offered here are the ones in common use:

Rounding is applied per day, because that is where a time clock applies it, and over five days the swings mostly cancel — mostly. Over a month a consistent bias in one direction is a real number, which is why this tool shows the exact figure as well: set the rounding to “exact” and compare. If they differ by more than a rounding step or two a week, the arithmetic is not the problem.

One thing this calculator will not do is tell you what your employer owes. Overtime thresholds, premiums and rounding practice are set by law and by contract, they vary by country and by state, and they change. What you get here is honest arithmetic on the numbers you enter, shown both ways so the assumptions are visible.

How to use this
  1. Fill in the start and end times for each day worked — “Fill 9–5” lays down a standard week to edit.
  2. Put unpaid breaks in minutes; they come off the day's paid total.
  3. Open the settings to set your overtime thresholds, rounding and hourly rate.
  4. Print the week as a time card, or leave it — the browser keeps it until you clear it.

Worth knowing: This is arithmetic, not legal or payroll advice. Overtime rules, break entitlements and rounding practice differ by country, state and contract; the thresholds are yours to set. Gross pay is before tax and every other deduction.

FAQ

How do I convert minutes into decimal hours?

Divide by 60 and keep two places: 15 minutes is 0.25, 20 is 0.33, 30 is 0.50, 45 is 0.75. The full minute-by-minute table is on this page. The error worth avoiding is writing 7.30 for 7 hours 30 minutes — that is 7 hours 18 minutes, and it underpays twelve minutes every time it happens.

Does it handle overnight shifts?

Yes. Enter the times as they happened — in at 22:00, out at 06:00 — and an end earlier than the start is read as the following morning. The row says so, so the assumption is visible rather than silent.

What happens to a shift on the day the clocks change?

It is counted as the time that actually elapsed. A 22:00–06:00 night shift across the spring change is seven hours, not eight, and across the autumn change it is nine. Almost every other calculator subtracts the clock readings and reports eight for both, which is an hour of pay in one direction or the other. The row tells you when this has happened.

How is overtime worked out?

You set the thresholds. A weekly rule (40 hours is the American convention) and an optional daily rule (8 hours) can both apply, and hours that break the daily rule are not counted again by the weekly one. The premium defaults to time and a half. None of these are legal advice — they are the numbers you entered.

Can I round to the quarter hour like my employer does?

Yes — each day can be rounded to the nearest 5, 6, 10 or 15 minutes, or left exact. Rounding is applied per day, which is how a time clock does it, and it can move a week's total by a few tenths in either direction.

Is my timesheet stored anywhere?

Only in your own browser, so the week is still there when you come back. Nothing is sent to a server, there is no account, and clearing the week removes it.