MSC demurrage & detention free time, port by port: how to read it

MSC demurrage and detention free time is two separate clocks, not one. Demurrage runs while your full container sits inside the terminal after discharge; detention runs after you gate the box out, until you return it empty. Both vary by port, container type and contract. Always check the live figure per box.

The invoice that ruins someone’s month usually starts with a sentence like “but I thought we had a week.” The team wasn’t lazy: they were counting the wrong clock. Demurrage and detention sound like one thing, they’re billed as two, and the free time on each can differ by port, by container type, and by whatever’s in your specific contract. Get the mental model wrong and you’ll act on the day the second clock has already been running for three.

This is how MSC free time actually behaves, the structure rather than the numbers, and how to pull the real figure for your box before it costs you.

Two clocks, not one

Here’s the distinction that trips everyone up. Demurrage is the port’s clock: it runs while your full import container sits inside the terminal after discharge, waiting to be picked up. Detention is the carrier’s equipment clock: it runs once you’ve taken the box out of the terminal and are holding their container out in the world before you return it empty.

They don’t overlap and they don’t hand off cleanly: there’s a gate-out event between them, and that event is where one clock stops and the other starts. Miss it and you’ll think you have detention days left while the demurrage meter was the one that mattered, or vice versa.

Why does MSC free time change from port to port?

There is no single “MSC free time.” It’s a function of the port, and reasonably so: a congested import hub where boxes are hard to move out gives a different allowance than a quiet one, and local terminal practice, holidays and container type (a dry box versus a reefer that’s burning power) all move the number. A reefer or an out-of-gauge unit typically gets a shorter leash, because the equipment is scarce and expensive to have sitting still.

So the free-time figure that was true for your last shipment through one port tells you very little about this one through another. The shape below is how the differences tend to land. Treat it as “expect variation,” not as a rate card.

How to read it without getting burned

A few rules that hold regardless of the exact numbers:

Know which clock you’re on. Before pickup, you’re on demurrage. After gate-out, you’re on detention. If someone quotes you “days left,” ask which clock. The answer changes the deadline.

Find the free-time-until date, not the day count. “Seven days” is useless if you don’t know which day it started counting from. What you want is a concrete free-until timestamp for your container at your port, so there’s no arithmetic to fumble under pressure.

Watch weekends and holidays. Depending on the tariff, some free-time days are calendar days and some are working days. That difference is exactly how a “safe” box tips into charges over a long weekend.

Act before the dashed line, not on it. Charges are typically tiered: they escalate the longer you sit. The cheapest day to clear a box is always before the first chargeable one.

Don’t memorise it: look it up per box

The reason this is hard is that the honest answer to “what’s my MSC free time?” is it depends on the box. Any single published number you memorise will be wrong for the next shipment. What you actually need is the carrier’s own free-time for this container, at this port, with the clock already counted for you.

That’s what TrackingMCP’s free-time lookup does: it surfaces the carrier’s published free-time for a live container and shows the clock against it: a real free-until date, per box, so your team acts before the tier kicks in instead of after the invoice lands. Ask it in an assistant, or call get_demurrage_free_time from your own system and get the same answer. If you want the operational playbook for staying ahead of these charges across a whole book of containers, we wrote it up here: demurrage & detention, handled before the invoice.

Common questions about MSC free time

What is the difference between demurrage and detention?

Demurrage is the port’s clock: it runs while your full import container sits inside the terminal after discharge, waiting to be picked up. Detention is the carrier’s equipment clock: it runs once you’ve taken the box out of the terminal and are holding it before you return it empty.

How many free days does MSC give?

There is no single MSC free-time number. It’s a function of the port, the container type and your specific contract: a congested hub or a reefer runs tighter than a quiet port or a dry box. Always pull the live figure for your container rather than memorising a day count.

When does the free-time clock start?

The demurrage clock starts at discharge, when the box comes off the vessel. The detention clock starts at gate-out, when you collect the box from the terminal. The gate-out event is where one clock stops and the other starts.

How do I check MSC free time before charges start?

Look up the carrier’s own published free-time for that specific container at that specific port, and read the free-until date rather than a day count, so there’s no arithmetic to fumble. TrackingMCP’s free-time lookup surfaces it per box with the clock already counted.