|
APLUS CAREER · STRATEGIC INSIGHT · HR & TALENT 5.5 to 6 Days of Work: Is It Time to Seriously Change? A Strategic Analysis of Thailand’s Working Hour Culture and the Global Case for Change Nina Phinnipha Suriyong | Founder, APlus Career | BCCT Board Director & Women in Business Chair | March 2026 |
|
#3 Thailand globally for longest working hours [1] |
46.7% of Thai workers exceed 48h/week [1] |
+39.9% productivity gain: Microsoft Japan trial [4] |
$438B lost globally to disengagement in 2024 [5] |
Nearly half of all Thai workers exceed 48 hours per week.
Thailand ranks third globally for longest working hours and is the only
country in the ILO dataset where manufacturing hours average over 59 per week, exceeding even service sector hours.[1]
Yet the conversation about changing this has barely started.
THE
THAILAND REALITY: WHAT THE DATA ACTUALLY SHOWS
The legal maximum in Thailand
under the Labour Protection Act B.E. 2541 is 8 hours
per day and 48 hours per week. Yet the reality on the ground in SMEs, retail,
manufacturing, and family-owned businesses is a 5.5 to 6-day working week.
Saturday is treated as a full or half working day. ‘Expected presence’ culture
extends well beyond official hours, without formal acknowledgement or
additional compensation.[1][2]
Working Hours: Thailand vs. the
World
Share of
Workforce Exceeding 48 Hours Per Week | Source: ILO Working Time Report [1]
|
Country |
Share exceeding 48h/week |
Avg weekly hours |
|
THA Thailand |
46.7% |
avg 59h |
|
KOR South Korea |
49.5% |
avg 52h |
|
JPN Japan |
~28% |
avg 48h |
|
SGP Singapore |
~24% |
avg 45h |
|
DEU Germany |
~8% |
avg 34h |
|
ICE Iceland |
~6% |
avg 36h |
Note: Peru ranks #1 (50.9%) and South Korea #2 (49.5%) globally.
Thailand at 46.7% is #3. The ILO confirms Thailand is the only country in its
dataset where manufacturing hours (averaging over 59h/week) exceed service
sector hours.[1]
|
Key finding Annual Leave vs. Public Holidays (ILO & LPA): Thailand’s Labour Protection Act B.E. 2541 sets a statutory minimum of just 6 days of paid annual leave per year |
THE GLOBAL RESEARCH: WHAT WE NOW KNOW
The evidence is no longer emerging it is conclusive. The world’s largest coordinated four-day week trial ran across 61 UK organisations
from June to December2022, involving nearly 2,900 employees across sectors from marketing and finance to food retail and manufacturing.
Research was conducted by academic teams from the University of Cambridge and Boston College, USA.[3]
The 100-80-100 Model
The trial applied the 100-80-100 framework, developed by 4 Day Week Global:[3]
|
100% of Pay Maintained in full no pay reduction |
80% of Standard Hours One full day removed per week |
100% of Productivity Delivered and independently measured |
Key outcomes from the UK trial verified results:
- 65% reduction in sick days – compared to the same period the previous year[3]
- 57% fall in the number of staff – leaving compared to the prior year[3]
- 71% of employees reported lower – levels of burnout[3]
- 39% said they were less stressed – compared to the start of the trial[3]
- Revenue increased marginally by 1.4% on average (for organisations that provided data)[3]
- 56 out of 61 companies continued the four-day week after the trial ended; 18 made it permanent[3]
Source: Autonomy, University of
Cambridge & Boston College ‘The Results Are In: The UK’s Four-Day Week
Pilot’, February 2023. Funded by UKRI/ESRC [grant ES/S012532/1].
REAL-WORLD CASE STUDIES
|
USA USA 1926 |
|
Henry Ford reduced the standard work week from six days to five days. Critics predicted productivity collapse. |
|
● Standard week reduced: 6 days → 5 days, with no pay cut ● Productivity rose following the reduction in hours ● The five-day, 40-hour week became the global benchmark |
|
Source: Hunnicutt, B.K. (1988). Work Without End. Temple University Press. / Ford Motor Company Historical Archives, 1926. |
|
ICE Iceland 2015 2019 |
|
Two large-scale trials of a reduced working week (35 36 hours, no reduction in pay) were run by Reykjavik City Council and the Icelandic national government. Over 2,500 workers participated across government offices, social services, hospitals, and nursery schools. Independently evaluated by Autonomy (UK) and Alda (Iceland) and declared an ‘overwhelming success.’ Note: this was a shorter working week hours reduced from 40 to 35 36 per week, not a strict four-day week. |
|
● 2,500+ workers across 66 workplaces over 1% of Iceland’s working population ● Productivity and service provision remained the same or improved across the majority of workplaces ● Worker wellbeing improved dramatically: reduced stress, burnout, and health concerns ● 86% of Iceland’s workforce now has the right to shorter working hours or has already transitioned |
|
Source: Haraldsson, G.D. & Stronge, W. (2021). ‘Going Public: Iceland’s Journey to a Shorter Working Week.’ Autonomy & Alda. July 2021. autonomy.work/portfolio/icelandsww/ |
|
JPN Japan 2019 |
|
Microsoft Japan closed offices every Friday in August 2019, granting approximately 2,300 full-time employees paid leave. Productivity was measured by sales per employee, yielding a 39.9% increase compared to August 2018. Meetings were capped at 30 minutes; remote communication actively encouraged. Results were attributed to structural process changes. |
|
● +39.9% productivity (sales per employee vs. August 2018) ● −23.1% reduction in electricity consumption ● −58.7% reduction in paper printing ● 92.1% of employees reported satisfaction with the four-day schedule ● 30-minute meeting cap adoption rate increased by 46% during the trial |
|
Source: Microsoft Japan. (2019, Oct 31). ‘Work Life Choice Challenge 2019 Summer Results.’ news.microsoft.com/ja-jp. Corroborated by NPR, CNN, Washington Post, Japan Times, WEF (November 2019). |
|
GBR UK 2022 2023 |
|
61 UK organisations and approximately 2,900 employees participated in a six-month trial (June December 2022) based on the 100-80-100 model. Research led by Prof. Juliet Schor (Boston College) and Dr. David Frayne & Prof. Brendan |
|
● 65% reduction in sick days vs. same period the prior year ● 57% fall in staff departures vs. the prior year ● 71% of employees reported lower levels of burnout ● 39% reported lower stress levels ● Revenue increased marginally by 1.4% on average ● 56 of 61 companies continued the model post-trial; 18 made it permanent ● One-year follow-up (Feb 2024): at least 54 of 61 still operating (89%); 31 made permanent (51%) |
|
Source: Autonomy, University of Cambridge & Boston College. ‘The Results Are In: The UK’s Four-Day Week Pilot.’ February 2023. autonomy.work/wp-content/uploads/2023/02/The-results-are-in-The-UKs-four-day-week-pilot.pdf |
WHY THIS MATTERS NOW FOR THAILAND
Thailand is at an inflection point. The country is pursuing digital economy and creative economy agendas.
Yet the workforce model being used to fuel that ambition remains a 20th-century industrial one.
Three structural tensions are compounding simultaneously.
|
THE CURRENT MODEL 5.5 6 Day Culture |
THE REDESIGNED MODEL Output-Led Culture |
|
✕ Saturday as default working day rarely questioned |
✓ Clear output metrics results over visible hours |
|
✕ Presenteeism mistaken for performance |
✓ Protected deep work time, fewer interruptions |
|
✕ High burnout risk across Bangkok workforce [1] |
✓ Competitive EVP attracting regional senior talent |
|
✕ Accelerating attrition to regional competitors |
✓ 57% fewer employees planning to quit [3] |
|
✕ Low productivity-per-hour despite high total hours [1] |
✓ Higher productivity-per-hour, lower replacement costs |
The Talent War
Regional competitors Singapore, Malaysia, Vietnam are increasingly flexible on working models. Thai employers recruiting senior
talent now compete against international packages that include compressed weeks, remote options, and meaningful wellbeing benefits.
As an executive search firm operating in Bangkok with 18+ years of market experience, we see this in every senior search: candidates
are comparing working culture before they compare compensation.
Generational Expectations
Gen Z and Millennials now form the majority of the Thai workforce. Multiple surveys confirm this cohort ranks workplace flexibility above healthcare benefits in employment decisions. The 5.5-day, office-bound model is not their first choice and in competitive sectors, it is actively costing companies
applicants before the interview even begins.
Presenteeism Is Not Productivity
Visible hours do not equal delivered output. The ILO has documented that Thailand’s extended hours are driven in significant
part by low-productivity structures employers extending hours to increase output rather than improving processes.
The result is a compounding cycle: longer hours reduce per-hour output quality, which creates pressure for even more hours.[1]
|
“Attempts to reduce hours in these countries have been unsuccessful for various reasons, including the need of workers to work long hours simply to make ends meet and the widespread use of overtime by employers in an effort to increase their enterprises’ output under conditions of low productivity.” |
THE COST OF DOING NOTHING
|
$438 BILLION |
For Thai organisations maintaining the status quo, the risk compounds on five dimensions:
01 Accelerating Attrition of High Performers. The best people have options. As regional markets open and remote-first companies
compete for Thai talent, a 5.5-day model becomes a disqualifying factor in senior searches. Candidates withdraw at offer stage when
working models are clarified.
02 Rising Healthcare and Social Security Costs. Chronic overwork is clinically linked to cardiovascular disease, depression, and
metabolic disorders. Employers bear this through increased sick leave, higher turnover, and growing exposure under Thailand’s Labour
Protection Act B.E. 2541.[2]
03 Employer Brand Erosion. Glassdoor, LinkedIn, and professional word-of-mouth move faster than any EVP campaign. A culture of
overwork is no longer a private internal matter. Senior candidates actively research culture before responding to outreach.
04 Productivity Plateau Despite Rising Headcount. ILO research confirms that Thailand’s long hours are partly driven by low-productivity
structures. Extending hours to compensate for process inefficiency is a compounding trap not a solution.[1]
05 Increasing ESG and Reporting Pressure. Employee wellbeing metrics including working hours and burnout rates are increasingly
scrutinised by multinational clients, investors, and international partners evaluating Thailand-based operations.
A PRACTICAL ROADMAP FOR THAI LEADERS
This shift does not require legislation. It requires deliberate leadership decisions. Here is a framework
built on what has worked not theory:
|
PHASE 1 MONTH 1 – 2 |
|
|
PHASE 2 MONTH 3 – 6 |
|
|
PHASE 3 MONTH 7 – 12 |
|
|
The question is not whether to change. |
|
Your people are your most expensive asset. The leaders who answer that question well, and act on it early, will not struggle to attract and |
|
N |
Nina Phinnipha Suriyong Nina leads executive search and talent strategy across Thailand and Southeast Asia through APlus Career, part of the NPA Worldwide global network. She is Chair of the BCCT Women in Business Working Group and a Board Director of the British Chamber of Commerce Thailand. www.aplus-career.com . info@aplus-career.com . calendly.com/nina-aplus |
SOURCES & CITATIONS
[1] International Labour Organization (ILO). Working Time and Workers’ Well-Being. ILO Working Conditions Laws Database and
Working Time in the 21st Century Report. Geneva: ILO. ilo.org/global/topics/working-time. [Cited for: Thailand #3 globally; 46.7%
exceeding 48h/week; manufacturing sector 59h+; 57% of self-employed working 50h+; low-productivity structures quote]
[2] Thailand Labour Protection Act B.E. 2541 (1998), as amended. Department of Labour Protection and Welfare, Ministry of Labour,
Thailand. labour.go.th. Section 30: minimum 6 days paid annual leave after 1 year of service. Section 29: minimum 13 traditional public
holidays per year for private sector. Government-declared public holidays vary annually (typically 13 17 days by cabinet declaration).
[Cited for: 8h/day 48h/week legal maximum; 6-day minimum annual leave entitlement; 13-day minimum traditional holidays]
[3] Autonomy, University of Cambridge & Boston College. ‘TheResults Are In: The UK’s Four-Day Week Pilot.’ February 2023.
Quantitative:Prof. Juliet Schor & Prof. Wen Fan (Boston College). Qualitative: Dr. David Frayne & Prof. Brendan Burchell (University of
Cambridge). UKRI/ESRC [grant ES/S012532/1]. Full report: autonomy.work/wp-content/uploads/2023/02/The-results-are-in-The-UKs-
four-day-week-pilot.pdf. One-year follow-up: Digit Research Centre, February 2024. [Cited for: 61 companies, ~2,900 employees; all UK
trial outcomes; 100-80-100 model]
[4] Microsoft Japan. (2019, Oct 31). ‘Work Life Choice Challenge 2019 Summer Results.’ News Center Japan. news.microsoft.com/ja-
jp/2019/10/31/191031. Corroborated by: NPR (Nov 4, 2019); CNN Business (Nov 4, 2019); Washington Post (Nov 4, 2019); Japan Times
(Nov 5, 2019); World Economic Forum (Nov 2019). [Cited for: +39.9% productivity; −23.1% electricity; −58.7% printing; 92.1%
satisfaction; meeting cap +46%]
[5] Gallup. State of the Global Workplace: 2025 Report. Washington D.C.: Gallup, Inc. 128,000+ respondents across 160 countries.
gallup.com/workplace/349484/state-of-the-global-workplace.aspx. [Cited for: $438 billion lost globally to disengagement]
[6] Haraldsson, G.D. & Stronge, W. (2021). ‘Going Public: Iceland’s Journey to a Shorter Working Week.’ Autonomy & Alda (Association
for Sustainability and Democracy). July 2021. autonomy.work/portfolio/icelandsww/ [Cited for: Iceland trial; 2,500 workers; 66 workplaces;
‘overwhelming success’; 86% workforce outcome. Note: shorter working week of 35 36h, not a four-day week]
[7] Hunnicutt, B.K. (1988). Work Without End: Abandoning Shorter Hours for the Right to Work. Temple University Press, Philadelphia.
/ Ford Motor Company Archives, 1926. [Cited for: Ford’s 1926 shift from six-day to five-day week]
|
APlus Career Recruitment Co., Ltd. |