UK reward metrics · Time Off & Family

Do UK organisations operate a four-day week or nine-day fortnight for any population?

Source lumi HRBase 267 organisationsFieldwork 2026 H1

94.4%No

94.4% of organisations in the lumi HR community answered “No” on four-day week or nine-day fortnight (base: 267 UK organisations, 2026 H1).

Figures describe organisations in the lumi HR community, not a random sample of UK employers.

How UK organisations answered

4-day week (100:80:100) 3% 9-day fortnight 1.9% Trialling 0.7% No 94.4%
Four-day week or nine-day fortnight (base: 267 organisations, 2026 H1). Percentages percentages may not sum to 100 because of rounding.
Four-day week or nine-day fortnight: share of organisations by answer
AnswerShare of organisations
4-day week (100:80:100)rare3%
9-day fortnightrare1.9%
Triallingrare0.7%
Nocommon94.4%

Common, alternative and rare describe how each answer sits against the community: the most chosen answer is common; an answer chosen by fewer than one in five organisations is rare.

Definition

Captures whether any group works a four-day week or nine-day fortnight, including at trial stage. See the methodology for how the base is built, how not-applicable answers are handled, the public floor, and which organisations are excluded.

Cite this figure
Source: lumi HR, UK Reward Metrics, September 2026, lumihr.co.uk/metrics/four-day-week-or-nine-day-fortnight
Last updated 19 September 2026 · Data licence: CC BY 4.0 for the figures in the CSV download.

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