The Working Week Around the World

The Monday-to-Friday week feels universal if you have only ever worked inside it, but it is a regional convention, not a global one. A large share of the world runs on a five-day Monday-Friday week, yet a significant group of countries place their weekend on different days, and at least one major economy changed its pattern as recently as 2022. For anyone scheduling deadlines, running an SLA, or coordinating a cross-border team, knowing which days actually count as working days in the other party's country is the difference between a realistic plan and one that quietly loses two days a week.

This guide maps the main patterns: the Monday-Friday standard, the Sunday-Thursday week of much of the Middle East, the six-day and mixed weeks still found in parts of Asia, and the recent United Arab Emirates shift that catches out anyone relying on older references. It then covers why these patterns exist and what they mean in practice for international business.

The most important recent change: the UAE moved to Monday-Friday in 2022

Start here, because this is the fact most likely to be wrong in whatever reference you read before this one. Effective January 2022, the United Arab Emirates moved its official working week from Sunday-Thursday to Monday-Friday, with a Saturday-Sunday weekend for the federal public sector and schools, and a shortened Friday for government workers ahead of the weekend. Before 2022 the UAE shared the Sunday-Thursday pattern with its Gulf neighbours; it no longer does.

The practical upshot is that a great deal of online material still describes the UAE as a Sunday-Thursday country, and that information is now out of date. If you are scheduling against a UAE counterpart, treat the UAE like a Monday-Friday market: Saturday and Sunday are the weekend, and the overlap with European and American partners is wider than it was a few years ago. The country's business day calculator reflects the post-2022 Saturday-Sunday weekend, not the old pattern.

The Monday-Friday standard

Most of the world runs Monday to Friday with a Saturday-Sunday weekend. The United States, Canada, the United Kingdom, almost all of the European Union, Australia, Japan, and India all follow it, as do most of Latin America, Sub-Saharan Africa, and East and Southeast Asia. When a contract refers to "business days" without qualification in any of these markets, it means Monday through Friday, excluding public holidays.

The pattern is consistent enough that you can usually assume it, but the public holidays layered on top are not. A "business day" in Germany excludes different dates from a business day in Japan or India, and several countries observe regional holidays that close offices in one state or emirate but not another. The weekend is the easy part; the holiday calendar is where cross-border scheduling actually goes wrong. The calculators for the United States and the United Kingdom apply each country's specific holiday set on top of the shared Monday-Friday frame.

A region-by-region snapshot

It helps to carry a rough map in your head. The entire Americas, from Canada to Argentina, runs Monday-Friday. So does all of Europe, east and west, along with the United Kingdom and Ireland. Sub-Saharan Africa is overwhelmingly Monday-Friday, as are South Asia's largest economies, India, Pakistan, and Bangladesh, the whole of East Asia, China, Japan, and South Korea, and Southeast Asia, plus Australia and New Zealand. For all of these, a five-day week with a Saturday-Sunday weekend is the safe default.

The clear exception is the Middle East and the Arabian Peninsula, where a Friday-Saturday weekend produces a Sunday-Thursday working week across Saudi Arabia, Egypt, Qatar, Kuwait, Bahrain, Oman, Jordan, and Iraq, with Israel running the same Sunday-Thursday calendar around its Saturday Sabbath. North Africa is mixed: Egypt sits in the Sunday-Thursday camp, while Morocco and Tunisia lean toward Monday-Friday. The one moving piece is the United Arab Emirates, which left the Sunday-Thursday group in 2022. The lesson from the map is simple: assume Monday-Friday almost everywhere, then check carefully the moment a deadline touches the Middle East.

The Sunday-Thursday week

A band of countries across the Middle East places the weekend on Friday and Saturday, making the working week run Sunday to Thursday. Saudi Arabia is the largest example; it moved its weekend from Thursday-Friday to Friday-Saturday in 2013, aligning its rest days with global markets while keeping Friday, the day of congregational prayer, as part of the weekend. Egypt and Qatar follow the same Sunday-Thursday pattern, as do Kuwait, Bahrain, Oman, and several others in the region.

For a business in a Monday-Friday country, the consequence is stark: a Sunday-Thursday partner is working on your Sunday and resting on your Friday, so the genuinely shared working days shrink. A US company and a Saudi Arabian counterpart overlap on only three days, Monday, Tuesday, and Wednesday, because Thursday is the Saudi week's last day before its Friday-Saturday weekend while Sunday is a normal Saudi working day that the US side spends at home. This region has enough specific detail, country by country, to warrant its own treatment; the Sunday-Thursday work week in the Middle East guide covers it in depth.

Israel: Sunday to Thursday on a different basis

Israel also runs a Sunday-Thursday working week, but for a different reason than its neighbours. The Israeli weekend centres on Saturday, the Jewish Sabbath, with Friday functioning as a short day or half-day in many workplaces as people prepare for the Sabbath that begins Friday evening. Sunday is a full, ordinary working day. The result looks similar to the Gulf pattern on a calendar, a Sunday-Thursday core, but it rests on the Saturday Sabbath rather than the Friday prayer day. The Israel business day calculator applies the Friday-Saturday weekend used for working-day counting.

Six-day and mixed weeks

Not every country has settled on five working days. In Vietnam, a six-day Monday-Saturday week remains common in manufacturing, retail, and parts of the public sector, while many office and multinational employers run a standard Monday-Friday schedule, so the "working week" depends on the sector you are dealing with rather than the country alone. The Vietnam business day calculator uses the Monday-Friday convention for its counts, which fits white-collar and international business, but a factory counterpart may treat Saturday as a normal working day. Several other economies retain a six-day week in specific industries even where the official or office standard is five days, so when the schedule matters, confirm it rather than assuming.

Why the patterns differ: the religious basis

The reason these weekends sit on different days is straightforward and worth stating plainly, because it is the answer to "why" behind every pattern above. Friday is the day of congregational Jumu'ah prayer in Islam, which is why Muslim-majority countries built their weekend around Friday. Saturday is the Jewish Sabbath, observed from Friday evening to Saturday evening, which anchors the Israeli week. Sunday is the traditional day of Christian worship, the basis for the Saturday-Sunday weekend across the Americas, Europe, and much of the rest of the world.

Over the last two decades several countries have shifted their rest days toward Saturday-Sunday to align with global financial markets, while keeping their day of worship inside the weekend. Saudi Arabia's 2013 move and the UAE's 2022 move are both examples of that trade-off: keep Friday as a rest day, but add Saturday or move to a Saturday-Sunday weekend so the working week overlaps more with London and New York.

Patterns are still shifting

The work-week map is not fixed, and the direction of travel over the last decade has been clear: toward alignment with the Saturday-Sunday weekend of the major financial centres. Saudi Arabia moved its weekend from Thursday-Friday to Friday-Saturday in 2013, gaining a shared rest day with most of its Gulf neighbours and an extra day of overlap with Western markets. The United Arab Emirates went further in 2022, adopting a Monday-Friday week with a Saturday-Sunday weekend and a half-day Friday for the public sector, the first Gulf state to align its weekend fully with Europe and the Americas.

The driver in both cases was economic rather than cultural. A financial hub that rests while London and New York are trading loses settlement days, delays cross-border deals, and complicates the work of banks and exchanges that need to move in step with global markets. Shifting the weekend toward Saturday-Sunday, while keeping the Friday prayer day inside the rest period, buys back those overlap days. Whether other Gulf states follow the UAE's lead is an open question, but the practical lesson is to treat the work week as a live detail that can change, and to verify it against a current source rather than a years-old assumption. The fact that the UAE's own pattern is recent is the clearest reminder that "everyone knows the work week there" is not a safe basis for a deadline.

What this means for international business

The work-week pattern affects every cross-border deadline, and four areas are worth watching in particular.

Scheduling deadlines. A deadline expressed in "business days" means different calendar dates depending on whose working week applies. Five business days from a Wednesday is the following Wednesday in a Monday-Friday country, but it lands differently for a Sunday-Thursday partner whose weekend falls on your Friday and Saturday. Always agree whose business days govern the deadline, and confirm it in writing, because the same phrase produces two different dates.

SLA and support windows. A service-level agreement promising response "within two business days" is only meaningful once both sides know which days are business days. A support desk in a Sunday-Thursday country is closed on Friday and Saturday; one in a Monday-Friday country is closed on Saturday and Sunday. The only day both are reliably closed is, in many pairings, none at all, which is why "follow-the-sun" support models specify coverage by time zone and calendar rather than by a generic "business day."

Cross-border deliveries and logistics. Freight, customs clearance, and goods-received dates run on the destination country's working week, not the origin's. A shipment that clears on a Thursday in a Sunday-Thursday market will not be processed further until Sunday, a two-day pause that a Monday-Friday shipper may not anticipate. The same applies in reverse for goods arriving into a Monday-Friday country over its weekend.

Banking and payment cutoffs. Domestic payment systems settle on the local working week. A transfer initiated late in the week can sit unsettled across a weekend that falls on different days at each end, so a payment sent Thursday from a Monday-Friday country into a Sunday-Thursday market may not settle until the recipient's banks reopen on Sunday, while one sent the other way can stall over the Friday-Saturday gap. For time-sensitive payments, count the cutoff against the destination's banking week.

A worked example: a deadline across the gap

Suppose a US supplier agrees to deliver a report "within five business days" to a client in Saudi Arabia, and both sign on a Wednesday. Whose business days count? Under the US Monday-Friday week, five business days from Wednesday is the following Wednesday. Under the Saudi Sunday-Thursday week, the count skips Fridays and Saturdays instead of Saturdays and Sundays, so the same five-day promise resolves to a different calendar date, and the two can sit a day or more apart. If the contract does not say which week governs, each side will calculate a different deadline in good faith and then disagree about whether delivery was late.

The fix is procedural, not mathematical. State in the agreement whose business days control, name the country, and ideally attach the holiday calendar that applies. When work genuinely flows both ways, some contracts define a deadline by a fixed calendar date instead of a business-day count, sidestepping the question entirely. Where a business-day count is unavoidable, compute it under the controlling country's week using that country's calculator and share the resulting date explicitly rather than the formula, so both sides are looking at the same day on the calendar rather than the same phrase that resolves differently in each office.

Counting business days when the weekend differs

Once you know the other party's working week, the arithmetic is the same as any business-day calculation; you just exclude the correct weekend. A business-day count for a Saudi or Egyptian counterpart skips Fridays and Saturdays, while one for a US or German counterpart skips Saturdays and Sundays, and both also drop the relevant public holidays. The country calculators on this site each apply the right weekend and holiday set for their market, so you do not have to track which pattern a given country uses; selecting the country does it for you. When a deadline spans two countries with different weekends, the safe approach is to compute it twice, once under each working week, and use whichever your contract specifies as controlling.

One last caution: the weekend is only half of the count. Two countries can share the Monday-Friday week and still resolve the same "ten business days" to different dates because their public holidays fall on different days, and a national holiday in one market is an ordinary working day in the other. The weekend tells you the shape of the week; the holiday calendar tells you which of those weekdays actually count. Get both right, for the country whose week governs, and a cross-border deadline stops being a source of avoidable disputes.

FAQ

Is the Monday-Friday work week universal?

No. It is the most common pattern and applies across the Americas, Europe, most of Africa, and much of Asia and Oceania, but a band of Middle Eastern countries uses a Sunday-Thursday week with a Friday-Saturday weekend, and some sectors in countries such as Vietnam still work a six-day week. Always confirm the working week of the country and sector you are dealing with rather than assuming Monday-Friday.

Which countries use a Sunday-Thursday work week?

Saudi Arabia, Egypt, Qatar, Kuwait, Bahrain, Oman, and several other Middle Eastern countries use a Sunday-Thursday working week with a Friday-Saturday weekend, and Israel runs Sunday-Thursday around the Saturday Sabbath. The United Arab Emirates used this pattern until January 2022, when it moved to a Monday-Friday week with a Saturday-Sunday weekend.

Did the UAE change its work week?

Yes. Effective January 2022, the United Arab Emirates moved from a Sunday-Thursday week to a Monday-Friday week with a Saturday-Sunday weekend for the public sector and schools, with a shortened Friday for government staff. Many older references still describe the UAE as Sunday-Thursday; that is no longer correct.

Why do some countries rest on Friday instead of Sunday?

The weekend in most Muslim-majority countries is built around Friday because Friday is the day of congregational Jumu'ah prayer. Israel's week is built around Saturday, the Jewish Sabbath, and the Saturday-Sunday weekend elsewhere reflects Sunday as the traditional Christian day of worship. Several countries have shifted their rest days toward Saturday-Sunday to align with global markets while keeping their day of worship inside the weekend.

How many working days do a US and a Saudi business actually share?

Three. A Monday-Friday US week and a Sunday-Thursday Saudi week overlap only on Monday, Tuesday, and Wednesday. The Saudi side works Sunday while the US side rests, and the US side works Friday while the Saudi side rests, so any cross-border coordination that needs both parties live has a three-day window each week.