Working across time zones with people outside your team
Your week is an internal agreement. Nobody outside signed it.
Fifty notes on time zones from the side that is usually left out: not your own distributed team, who can be asked to adopt a convention, but the client, the contractor, the supplier and the inspector, who cannot. The hours of offset are the easy part. The hard part is that their working week is a different week.
When different working weeks make capacity hard to read, teams can employee monitoring software before deciding whether a delay came from workload, handoffs, or a calendar mismatch.
For a separate reference on calendars, standards, or international operations, consult IANA.
Who is working when, for the people on this page
Your team, Hamburg
The only week on this page anybody here can change
The client's procurement office, Dubai
Their week ends on Thursday, so a Friday request lands on their weekend
The fabrication contractor, Taipei
Saturday is a working day there and was not in anybody's plan here
three parties · four days of the seven are working days for all of them · Mon, Tue, Wed, Thu
Three of the five parties on one job. The two weeks that are not ours are facts rather than arrangements, and neither of them was asked about until something had already slipped.
Nobody here is told how their counterparties should work. Every figure is an illustration of what one organisation recorded about its own work over about eighteen months, labelled as such on the page where it appears; no benchmark is offered and none is implied. Nothing in this collection is legal or contractual advice: what a delivery date means, when a notice period starts and what counts as a working day differ by jurisdiction and by contract, and they change.
Six places the week stops lining up
Every note belongs to one of them. The line at the foot of each card is what that part of the problem actually cost somebody, stated as a thing that happened rather than as a principle.
Whose day
Whose day it is
Five parties, five ideas of which days are working days, and no two of the five-day weeks made of the same five days.
three shared days out of seven
Deadlines
What a deadline means
A day of the week is not an instant, and the four people reading your sentence will produce four different moments from it.
one phrase, two readings, a day apart
Waiting
Waiting on them
Most of the anxiety is spent in an interval where the other side has not yet had a working hour, and most of the delay is made of round trips.
eleven round trips, eleven days
Being waited on
Being waited on
The delay you cause is invisible from where you sit, which is why it is larger than you think and cheaper to fix than the delay you suffer.
four minutes here, a week there
The live hour
The live hour
Count the hours everybody is awake before scheduling anything, then spend them only on the things that cannot be written down.
two usable hours a week
The agreement
When the gap is the deal
The difference between two working weeks is a real cost. It can be priced, asked about before signing, and written into the agreement.
twenty-eight days of making, thirty-five of waiting
One job, every party on it, counted
Three panels, all drawn from the same stretch of work with the same client, supplier, forwarder and inspector. The unit throughout is the day of the week rather than the hour: the hours of offset are the easy part, and the days are what nobody agreed on.
Five parties on one job, and the days each of them calls a working day
Your team, Hamburg
The week everybody internally agreed to, and the only one you control
The client's procurement office, Dubai
Their week ends on Thursday, so your Friday request lands on their weekend
The fabrication contractor, Taipei
Saturday is a working day there and was not in anybody's plan here
The freight forwarder, Chicago
The same week as yours, seven hours behind it
The port inspector, Santos
Monday is not a working day for him, which removed a day nobody had counted
five parties · three days of the seven are working days for all of them · Tue, Wed, Thu
Four of the five keep a five-day week, and no two of those weeks are made of the same five days. The offsets beside each row are the part everybody plans for and converts correctly; the days are the part that gets discovered, usually on the first occasion something does not come back when it was expected to.
Five things that were said, and the two instants each of them was understood to mean
“By Friday”, agreed on a Tuesday call
You: Fri 17:00 · Them: Thu 15:00 — Their week ends on Thursday, so Friday was never available to them
“First thing Monday”
You: Mon 09:00 · Them: Mon 02:00 — Their first thing is seven hours before yours and the file arrived overnight
“End of the week”
You: Fri 18:00 · Them: Sat 18:00 — Saturday is inside their week and outside yours
“Within 24 hours”
You: Wed 11:00 · Them: Thu 09:00 — Counted from when they opened it rather than from when it was sent
“Close of business”
You: Thu 17:00 · Them: Thu 23:00 — Their close of business is six hours after yours and is still the same day
five phrases · every one read as two different instants · the widest gap between the two readings is 1 day 2 hours
A sixth line was given to this panel and is not drawn. The one stated as an instant in UTC was understood identically by both sides, and a line with no disagreement in it is not an example of anything — it is the advice. Every other line here was said out loud by somebody who believed it was unambiguous.
Five waits on the same job, in calendar days and in their working days
A signed drawing back from the client
9 / 5Four of the nine days were not working days on their side: their week ends on Thursday and ours on Friday, so two different weekends fell inside the window. The drawing itself took under an hour of their time
A shipping date from the forwarder
3 / 2One of the three days was not a working day on their side: one of the three days was a Sunday.
Customs clearance in Santos
14 / 7Seven of the fourteen days were not working days on their side: Carnival fell inside the window and the port was shut for four of those days. Published eighteen months in advance, and nobody had looked
A price confirmation from Taipei
2 / 2Both days of this wait were working days on their side. The only one of the five where nothing had to be chased
An inspection slot
6 / 1Five of the six days were not working days on their side: the inspector's own queue rather than the time zone, and he spent those days on somebody else's job.
five waits · 34 calendar days · 17 of them working days on the other side
Two further lines were given to this panel and are not drawn. One claims more working days than calendar days, which cannot happen. The other leaves seven of its eleven days unexplained, and a wait with no reason attached gets blamed on the time zone — but a time zone produces hours, and these are days.
01 / 06three shared days out of seven
Whose day it is
Five parties, five ideas of which days are working days, and no two of the five-day weeks made of the same five days.
- The Week You Can Change and the Week You Cannot
- Asking Which Days Somebody Works
- The Friday and Saturday Weekend
- Public Holidays You Have Never Heard Of
- The Six-Day Week on the Other Side
- Counting Working Days On Two Calendars
- The Closure That Is Not a Public Holiday
- The One Person Who Signs
- Writing the Other Side's Week Down, Once
02 / 06one phrase, two readings, a day apart
What a deadline means
A day of the week is not an instant, and the four people reading your sentence will produce four different moments from it.
- “By Friday” Has No Owner
- Dates Without Zones Are Not Dates
- First Thing, Close of Business, End of Day
- The Clock That Starts When They Open It
- Dispatch, Arrival, and the Word “Delivery”
- Stating a Deadline So It Cannot Be Read Two Ways
- Delivered On Time and Recorded As Late
- The Deadline That Was Never Agreed At All
03 / 06eleven round trips, eleven days
Waiting on them
Most of the anxiety is spent in an interval where the other side has not yet had a working hour, and most of the delay is made of round trips.
- The Reply That Is Not Late Yet
- Knowing Whether You Are In a Queue
- Chasing Across a Weekend You Do Not Share
- Asking at the Wrong End of Their Day
- What One Round Trip Costs
- Batching Questions Instead of Sending Each One
- Asking For What You Will Need Next
- The Escalation That Arrives Too Late
- Waiting On Somebody Who Is Also Waiting
04 / 06four minutes here, a week there
Being waited on
The delay you cause is invisible from where you sit, which is why it is larger than you think and cheaper to fix than the delay you suffer.
- Somebody Is Waiting On You and You Do Not Know It
- The Reply You Could Have Sent Before Leaving
- Telling People When You Will Answer
- The Out-of-Office That Actually Helps
- Holding a Decision Overnight
- Being the Bottleneck In a Chain You Cannot See
- What Your Own Week Looks Like From Outside
- Answering Partially Rather Than Not At All
05 / 06two usable hours a week
The live hour
Count the hours everybody is awake before scheduling anything, then spend them only on the things that cannot be written down.
06 / 06twenty-eight days of making, thirty-five of waiting
When the gap is the deal
The difference between two working weeks is a real cost. It can be priced, asked about before signing, and written into the agreement.
The short version
An offset is arithmetic and can be looked up; a working week is an agreement you were not party to
Everybody plans for the hours. A seven-hour offset is a number, it appears in every calendar tool, and almost nobody has missed a delivery because of it alone. What gets missed is that the other party's Thursday is a Friday, that their Saturday is a Tuesday, and that the nine days lost to a public holiday were on a calendar anybody could have opened. You can change your own week and nobody else's, and almost everything in these fifty notes follows from taking that seriously.
Practical tool guides
Build the workflow around the calendar
Three independently structured comparisons for scheduling, asynchronous collaboration, and global workforce planning.