A trade-show date does not move. The lead-time number a supplier quoted last week might.
Most quoted lead times name one figure and leave the buyer guessing where it starts, what it covers, and how much of it belongs to the buyer rather than the factory. Two suppliers quoting the same number can be two weeks apart on the same calendar if one starts counting at order placement and the other at approved sample.
A custom silk scarf moves through four calendar phases: artwork and fabric preparation, sampling, bulk production, and shipping. Each phase carries its own day count. Once cloth is on the production line the chain is strictly sequential, so a week added anywhere is a week on the delivery date.
Production does not start at order placement. It starts when the factory holds a printable artwork file and the base cloth to print on.
Quotation and design review move in hours: 24 to 48 for a quote, 48 to 72 for a digital mock-up.
Base cloth is the bigger variable. A printer holding stock silk starts the moment artwork is approved. One that has to source or weave fabric adds 7 to 15 days before a single colour reaches the cloth.
Institutions that invest in thorough artwork preparation routinely need only one sample round instead of two or three. That single difference buys back an entire approval cycle worth of calendar.
Sampling runs 7 to 10 days from approved artwork to a finished strike-off ready to leave the factory.
A strike-off (the printed proof) commonly takes 5 to 7 working days per round, with two to three rounds typical. Each failed round costs the date twice: another 5 to 7 working days of factory time, and another courier leg while the buyer evaluates the re-print.
A colour that needs re-matching means another strike-off and another week against a launch date that has not moved. Responding to factory questions within 48 hours during this phase is worth more to the date than any expedite fee. Every day the approval sits idle is a day the factory either waits or guesses.
One detail worth checking on any quote: whether the sampling figure uses working days or calendar days. Twenty working days is four calendar weeks, so the units question alone can matter more than a two-day difference in the headline figure.
Between the sample leaving the factory and the buyer being able to approve it sits a shipping leg of 3 to 7 working days. That gap is inside neither published window, and across two approval rounds it adds roughly two weeks of calendar exposure.
Bulk production runs 20 to 25 days, and four independent suppliers confirm that the clock starts only after sample approval, not at order placement.
The stages buyers imagine fill three weeks are the fastest in the chain. Steam fixation of reactive dyes on silk runs 10 to 15 minutes at 102 to 105 degrees C, with wash-off following immediately in-line.
A digital print route loads a file and prints within minutes. A screen route requires weeks of colour separations and screen preparation before any ink touches cloth. That pre-press block is the single biggest calendar difference between the two print technologies.
The days accumulate around printing, not inside it. Bulk dyeing of the base cloth takes 7 to 10 days, followed by a mandatory 3 to 5 day cooling and stabilisation rest that cannot be compressed at any price.
A hand-rolled hem runs at 2 to 3 scarves per hour. A run of 300 and a run of 1,000 take nearly the same press time; hemming them does not. That is the one stage where quantity directly touches the calendar, and the economics of why factories set minimums sit on the cost side of the same equation.
Inspection runs about 1 day per 1,000 to 2,000 metres. Documentation (commercial invoice, packing list, certificates) adds 3 to 5 business days and gates the freight booking, because paperwork sits between goods finished and goods moving.
Freight sits entirely outside both quoted windows, and the two routes are a month apart.
Standard air freight from China to the US runs 8 to 10 days door to door. Ocean freight runs 30 to 40 days. LCL (less than container load) adds an extra one to two weeks over a full container.
A quoted lead time that ends at the factory gate and a delivery date that ends at the buyer’s warehouse match only if freight is zero. Asking the supplier to commit dates per stage rather than one number exposes whether the figure covers production alone or production plus transit.
Lunar New Year 2027 falls on Saturday 6 February. Factories slow 3 to 4 weeks before the holiday, shut from approximately 30 January through 14 February, and return at roughly 35% workforce capacity through early March. Full recovery takes 4 to 6 weeks from the holiday start.
Standard production for a Q1 2027 launch needs ordering by September or October 2026. Ocean freight is booked 3 to 4 weeks before departure, during production rather than after it.
The useful question is not how long this takes but when the buyer needs to approve artwork to make a fixed launch date. Count backwards from the delivery date: subtract freight, then bulk production, then approval rounds and the courier leg, then sampling.
Every stage in that chain is sequential. A slip at any point travels forward to the delivery date unchanged.
When you look at the numbers, the variable the buyer controls is the front of the chain. Artwork that arrives complete and a response time that keeps approval rounds moving buy more calendar days than anything the factory can compress.
An order that starts with a clean file on the right date finishes on time. One that starts late starts twice.