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Your Life

How Much of Your Life Have You Spent Working?

From age 18 to 32 at 37.5 hours a week with 5.6 holiday weeks, work adds up to about 24,360 hours — roughly 2.8 years of 24-hour time, or about a fifth of the clock since you started. Enter your own ages and hours below.

How much of your life have you spent at work?

Paid work occupies a strange place in a lifetime: it can feel like the whole story while you are inside a week, and like a thinner slice once you count evenings, weekends and the years before you started. This experiment uses a typical UK working week. The default 37.5 hours is a common full-time contract, and 5.6 holiday weeks is the statutory leave most workers are entitled to. You can change both. The result is an estimate of hours already spent working, not a judgement about ambition, rest or whether a job was worth it. Overtime, career breaks and part-time spells are left for you to fold into the sliders.

Written and checked by Aivora Digital · Last updated:

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Results update as you move the controls.

32years
18years

School, study or caring years before paid work can sit below this.

37.5hours
5.6weeks

UK statutory leave is 5.6 weeks for most workers.

Your result

2 years and 284 days

of clock time spent working

14 years in this pattern

Hours
24,360
Working days (8h)
3,045

If you picture an 8-hour day

Share of life so far
8.7%
Share of those working years
19.8%

Evenings, weekends and holidays sit in the rest

What does that mean?

Across 14 years at 37.5 hours a week, with 5.6 holiday weeks, the clock time is about 2 years and 284 days. That is 8.7% of the life lived so far, and 19.8% of the years since you started — the week is loud; the lifetime is larger.

At a glance

  • Working hours2.8 years
  • The rest of those years11.2 years

Timeline

  1. Start

    Age 18

    The model begins counting here, at the weekly hours you set.

  2. Now

    24,360 hours on the clock

    2 years and 284 days of 24-hour time, after subtracting holiday weeks each year.

The UK week this model starts from

There is no single official full-time week in the way people mean it over coffee. Many contracts cluster around 35 to 40 hours; 37.5 is a useful middle. The Working Time Regulations cap the average week at 48 hours unless someone opts out, which is why the slider will not go past that kind of territory without you pushing it. ACAS explains what counts as working time: the commute usually does not, and unpaid overtime often does if you are at the employer’s disposal. This page only counts the hours you type.

Holidays are not a rounding error

Five point six weeks sounds modest until you multiply it across a career. On a five-day week that is 28 days, the statutory floor for most full-time workers in the UK. Some employers include bank holidays inside that number; some add them on top. The model simply subtracts the holiday weeks you enter from 52, then multiplies remaining weeks by weekly hours and by years since you started. Generous leave shrinks the career total more than people expect, which is the point of putting it on a slider.

Work is a season of life, not the whole of it

Even a long full-time stretch is competing with sleep, unpaid care, weekends and everything before the start age. A 32-year-old who began at 18 has 14 working years behind them — real, and still much less than the life already lived. The bars put those hours next to the rest of the same period so the week does not quietly impersonate the lifetime. If you started later, or stepped away, move the start age rather than apologising to the calculator.

Worked example: a full UK working life

Take a full-time job of 37.5 hours a week with the statutory 5.6 weeks of paid holiday, from age 18 to 67. The State Pension age is rising from 66 to 67 between 2026 and 2028.

  1. Working weeks a year: 52 − 5.6 = 46.4.
  2. Hours a year: 46.4 × 37.5 = 1,740 hours (1,950 if you took no holiday at all).
  3. Working years: 67 − 18 = 49.
  4. Lifetime hours: 49 × 1,740 = 85,260 hours, about 9.7 years of round-the-clock time.
  5. Share of an 81-year life: about 12% of all hours, or about 17% of waking hours if you sleep 7.5 hours a night.

A full 49-year career at 37.5 hours a week comes to about 85,000 hours of work, close to the ‘90,000 hours’ figure that is often quoted. Commuting, overtime and career breaks would move it up or down.

What people get wrong

“We spend a third of our lives at work.”
During a working week, 37.5 hours is about a third of your waking hours. Across a whole life, including childhood, retirement, weekends and holidays, it is closer to 12% of all hours.
“37.5 hours a week means 1,950 hours a year.”
Only if you take no holiday. With 5.6 weeks of statutory leave it is 1,740 hours, and bank holidays may be included in that leave or added on top, depending on your contract.
“The law caps the working week at 48 hours, full stop.”
The 48-hour limit is an average, usually over 17 weeks, and adults can choose to opt out of it in writing. Some jobs are not covered at all.

Common questions

How many hours a year is 37.5 hours a week?

1,950 hours over 52 weeks, or 1,740 hours after 5.6 weeks of paid holiday. That is 7.5 hours a day over a five-day week.

How much of your life is spent working?

For a full-time career from 18 to 67 at 37.5 hours a week, about 85,000 hours: around 12% of an 81-year life, or about 17% of the hours you are awake.

How many working days is 5.6 weeks of holiday?

For someone working five days a week, 5.6 weeks is 28 days. Part-time workers get 5.6 times their usual working week, so someone on four days gets 22.4 days. The legal maximum is 28 days.

How we calculated this

Working years = current age − age you started work. Working weeks a year = 52 − weeks of holiday. Total hours = working years × working weeks × hours a week (none of these can go below zero). Days are hours ÷ 24; years of clock time are hours ÷ (24 × 365.25). The share of life uses lifetime hours from age × 365.25 × 24. Overtime, unpaid labour, sick leave and career breaks are not inferred.

Assumptions and limitations

This is a simplified estimate. Actual results depend on factors the model does not include.

  • Hours per week and holiday weeks are treated as constant from the start age to now.
  • A year contains 52 weeks for this purpose; the leftover day or so is ignored.
  • Statutory UK leave of 5.6 weeks is the default, not a personal entitlement check.
  • Commuting, lunch breaks and on-call time are included only if you put them in the weekly hours.
  • Unpaid work at home is outside the model.
  • Starting later than your current age produces zero hours.

Sources

All IfSketch sources · Methodology

Go further

Related experiments that pick up where this one leaves off.

  1. 01 · EverydayWhat if I worked four days a week?
  2. 02 · Your LifeHow Much of Your Life Is Weekends?
  3. 03 · Your LifeHow Much Time Have You Spent Commuting?
  4. 04 · Your LifeWhat If You Lived to 100?
  5. 05 · MoneyWhat If I Cut My Spending by 10%?

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