2027 U.S. Port Holidays and Ocean Carrier Schedule Blackouts

· Ports do not close for federal holidays. Terminal labour and gate hours do, and that is what stops a container from moving.
· Carrier blank sailings run on a separate calendar, driven by demand rather than by the holiday list.
· Free time counts in calendar days. A holiday never extends it.
This page exists to be checked against a booking, not read from start to finish. It lists the 2027 federal holidays that affect U.S. terminal operations, then the parts of the year when carriers typically withdraw sailings, and then what to do about both.
What actually stops on a holiday
Three things run on different clocks and are usually assumed to run on one. CBP offices close for federal holidays while the ABI/ACE systems keep processing entries, so a holiday does not stop a release message from arriving.
Terminal labour is the second clock. Gate hours and vessel operations follow the local labour agreement, and where a holiday falls on a weekend the observed day shifts. A container can be customs-released and still not be collectable.
The third clock is the free time granted by the terminal and the carrier. It runs in calendar days and does not pause for anything, which is why the holiday that costs the most money is usually the one nobody checked.
2027 federal holidays
Date | Day | Holiday | What it affects |
January 1 | Friday | New Year's Day | Terminal gates, CBP offices |
January 18 | Monday | Martin Luther King Jr. Day | Terminal gates, CBP offices |
January to February | — | Chinese New Year shutdown | Factory closures in China; 2027 CNY falls on February 6 |
February 15 | Monday | Presidents' Day | Terminal gates, CBP offices |
May 31 | Monday | Memorial Day | Terminal gates, drayage capacity |
July 5 | Monday | Independence Day observed | Terminal gates; July 4 falls on a Sunday |
September 6 | Monday | Labor Day | Terminal gates, drayage capacity |
October 11 | Monday | Columbus Day | CBP offices; terminal practice varies by port |
November 11 | Thursday | Veterans Day | CBP offices; terminal practice varies by port |
November 25 | Thursday | Thanksgiving Day | Terminal gates; Friday often reduced |
December 24 | Friday | Christmas Eve observed | Reduced gate hours at many terminals |
December 31 | Friday | New Year's Eve observed | Reduced gate hours at many terminals |
Observed dates reflect the federal schedule. Individual terminals publish their own gate calendars and the two do not always agree, which is the reason to check the terminal rather than the list.
When carriers withdraw sailings
Window | Why | What it does to your booking |
After Chinese New Year | Factories idle, demand drops | Fewer strings; rates soften, schedules thin |
Late spring build-up | Peak season positioning | More capacity, more rollover risk at the front |
Peak season, roughly July to October | Volume exceeds available slots | Overbooking; rollovers concentrate here |
After the peak | Demand falls faster than capacity | Blank sailings announced two to four weeks out |
Chinese New Year run-up | Exporters ship before the shutdown | Space is tightest here; 2027 CNY falls on February 6 |
A blank sailing is not a delay of one vessel; it removes the sailing. The booking moves to the next string, which is usually already fuller than the one that was cancelled.
The Chinese New Year window
Chinese New Year falls on 6 February 2027. It is the one event on this calendar that shuts the supply side rather than the destination, and it is the one that needs the longest lead time.
The pattern is consistent enough to plan against. Factories stop one to two weeks before the holiday and restart one to three weeks after it, with the restart slower than the stop. Exporters push to ship before the shutdown, so space in the two to three weeks beforehand is the tightest of the year, and the vessels in the week immediately before are frequently overbooked.
The second-order effect arrives later. The week after the holiday produces very few departures, which means a gap in arrivals roughly four to six weeks out, and importers who planned arrivals evenly discover the gap as a stockout rather than as a shipping problem.
How to plan around both
Treat a holiday as a two-day event rather than a one-day event. The working day before a holiday is when everyone collects, and the working day after is when everyone collects what they could not get. Congestion peaks on the shoulders, not on the day.
For 2027, the two windows that need the most lead time are the Chinese New Year run-up in January and the peak season months from July to October. Bookings in those windows should be confirmed earlier than the rest of the year, and the delivery appointment should be booked as soon as the arrival date is known rather than after it.
Finally, count free time yourself. If a container lands on the Wednesday before Thanksgiving, the free days burn through a holiday and a reduced Friday. Nothing about that is the terminal's error, and nothing about it is recoverable after the invoice arrives.
What to do in the next thirty days
Task | By when |
Put the ten holidays above into the booking calendar | This week |
Confirm the gate calendar for your usual terminals | This week |
Flag January bookings for Chinese New Year space | Before mid-December |
Check free time on the next three arrivals | Before they discharge |